JP2000288596A - Continuous pressure dehydrator - Google Patents
Continuous pressure dehydratorInfo
- Publication number
- JP2000288596A JP2000288596A JP11097418A JP9741899A JP2000288596A JP 2000288596 A JP2000288596 A JP 2000288596A JP 11097418 A JP11097418 A JP 11097418A JP 9741899 A JP9741899 A JP 9741899A JP 2000288596 A JP2000288596 A JP 2000288596A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical filter
- sludge
- screw
- inclined cylindrical
- back pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/125—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/18—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing with means for adjusting the outlet for the solid
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、浄水処理場等か
ら発生する無機系汚泥の濃縮、脱水装置に関し、特に、
連続的に汚泥濃縮と、濃縮汚泥の圧密脱水を可能とした
連続加圧脱水機の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for concentrating and dewatering inorganic sludge generated from a water treatment plant and the like.
The present invention relates to an improvement of a continuous pressurized dewatering machine which enables continuous sludge concentration and consolidation dewatering of concentrated sludge.
【０００２】[0002]
【従来の技術】従来、無機系の汚泥の固液分離装置とし
ては、高速回転させる外筒と、外筒の内部に若干の差速
で回転させるスクリュー胴を設け、遠心力によって連続
的に固液分離を行う遠心分離機は、例えば、特開平７−
８５８号公報に記載してあるように公知である。そし
て、並列したろ板間に原液を圧入して間歇的に固液分離
を行うフイルタープレスも、例えば、特開平７−８０２
１４号公報に記載してあるようによく知られている。2. Description of the Related Art Conventionally, as a solid-liquid separation device for inorganic sludge, an outer cylinder rotating at a high speed and a screw cylinder rotating at a slightly different speed are provided inside the outer cylinder, and the solid body is continuously solidified by centrifugal force. A centrifuge for performing liquid separation is disclosed in, for example,
It is known as described in U.S. Pat. A filter press in which the undiluted solution is injected between the parallel filter plates to perform intermittent solid-liquid separation is also disclosed in, for example, JP-A-7-802.
It is well-known as described in JP-A-14.
【０００３】[0003]
【発明が解決しようとする課題】然しながら、特開平７
−８５８号公報に記載の遠心分離機は、連続的に固液分
離が行えるものであるが、固液分離を行った濃縮汚泥
は、含水率が高く、処理汚泥の容量が大きくて、後処理
の費用が高くなる欠点があった。また、特開平７−８０
２１４号公報に記載のフイルタープレスにあっては、高
圧搾が可能であり、脱水汚泥は含水率が低く後処理が容
易であるが、間歇運転のために雑時間が長くなりコスト
も高くつく欠点があった。この発明は、本願の出願人が
提案した、下水処理場等の難ろ過性の原水から有機物を
洗浄分離して、残ったし渣をスクリューで移送しながら
脱水する装置（実開平５−９３６７９号）の技術を応用
して、無機系の汚泥の固液分離装置に適応し、上記の従
来装置の欠点を解消する装置を提供する。However, Japanese Patent Application Laid-Open No.
The centrifugal separator described in Japanese Patent Application Laid-Open No. 8-858 is capable of continuous solid-liquid separation, but the concentrated sludge subjected to solid-liquid separation has a high water content, a large capacity of treated sludge, and a post-treatment. However, there was a disadvantage that the cost was high. Also, JP-A-7-80
In the filter press described in JP-A-214, high-pressure squeezing is possible, and dewatered sludge has a low moisture content and is easy to post-process, but the disadvantage is that the intermittent operation increases the miscellaneous time and costs. was there. The present invention proposes an apparatus proposed by the applicant of the present invention for washing and separating organic matter from hard-to-filter raw water at a sewage treatment plant or the like, and dewatering while transferring the remaining residue with a screw (Japanese Utility Model Laid-Open No. 5-93679). The present invention provides an apparatus adapted to a solid-liquid separation apparatus for inorganic sludge by applying the technique of (1) and eliminating the above-mentioned drawbacks of the conventional apparatus.
【０００４】[0004]
【課題を解決するための手段】この発明は、上述のよう
な従来の課題を解決したものであって、その要旨とする
ところは、円筒状フイルターの内部に回転自在なスクリ
ューを支架した濃縮ゾーンと、円筒状フイルターの後端
部に傾斜円筒フイルターを連結した脱水ゾーンとを有す
る脱水機において、上記スクリューの駆動モーターにト
ルク検知器を設け、この検知器の検知信号を、傾斜円筒
フイルターの排出口に設けた背圧調整板に連動させたも
のである。具体的には、上記スクリューの駆動モーター
に、そのトルクを検知するトルク検出器と、検出した負
荷電流を、予め設定してある上限設定トルク及び下限設
定トルクの設定値とを比較する比較器と、この比較器か
らの信号に基づき制御信号を発する制御器を設け、その
制御信号により、スクリューの駆動モーターに過大電流
が流れた時に、シリンダーを作動して背圧調整板を緩め
る方向に移動させ、駆動モーターに過小電流が流れた時
に、背圧調整板を付勢する方向に移動させ、均一な脱水
汚泥を得るようにしたものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its gist is to provide a concentration zone in which a rotatable screw is supported inside a cylindrical filter. And a dewatering zone having a dewatering zone in which an inclined cylindrical filter is connected to the rear end of the cylindrical filter, a torque detector is provided in a drive motor of the screw, and a detection signal of this detector is output to the inclined cylindrical filter. This is linked with the back pressure adjusting plate provided at the outlet. Specifically, a torque detector that detects the torque of the drive motor of the screw, a comparator that compares the detected load current with a preset upper limit set torque and a preset lower limit set torque. A controller is provided to generate a control signal based on the signal from the comparator, and when an excessive current flows to the screw drive motor by the control signal, the cylinder is operated to move the back pressure adjusting plate in a direction to loosen. When an undercurrent flows through the drive motor, the back pressure adjusting plate is moved in the direction of urging to obtain uniform dewatered sludge.
【０００５】上記円筒状フイルターと傾斜円筒フイルタ
ーの周部近傍に洗浄管を設け、原液の供給路に圧力検出
器と、検出した負荷電流を予め設定してある圧力の上限
設定値と比較する比較器と、この比較器からの信号に基
づき制御信号を発する制御器とを設け、スクリーンが目
詰まりしたときには、その制御信号により、洗浄管の電
磁弁を開放させるものである。また、上記円筒状フイル
ターと傾斜円筒フイルターの間に可撓性の連結管を接続
し、原液のろ過性の難易度に基づき、傾斜円筒フイルタ
ーの傾斜角を設定し、原液のろ過性の難易度に応じて背
圧を換えるものである。また、上記円筒状フイルターと
傾斜円筒フイルターの外周ろ過面が、原水の送り方向に
スリットを有するスクリーンで構成し、スクリューの回
転により、濃縮汚泥と脱水汚泥がスクリーンのスリット
に沿って移送され、汚泥がスリットに押込まれないよう
にしたものである。A washing pipe is provided in the vicinity of the periphery of the cylindrical filter and the inclined cylindrical filter, and a pressure detector is provided in the supply path of the undiluted solution, and the detected load current is compared with a preset upper limit set value of pressure. And a controller for issuing a control signal based on the signal from the comparator. When the screen is clogged, the control signal opens the solenoid valve of the washing pipe. In addition, a flexible connecting pipe is connected between the cylindrical filter and the inclined cylindrical filter, and the inclination angle of the inclined cylindrical filter is set based on the difficulty of filtering the undiluted solution. The back pressure is changed according to the pressure. Further, the outer peripheral filtration surface of the cylindrical filter and the inclined cylindrical filter is constituted by a screen having a slit in a feed direction of raw water, and by rotating a screw, the concentrated sludge and the dehydrated sludge are transferred along the slit of the screen, and the sludge is removed. Is not pushed into the slit.
【０００６】[0006]
【発明の実施の形態】この発明に係る装置は、上述のよ
うに構成してあり、濃縮ゾーンの円筒状フイルターに圧
入された原液は、その圧入圧によって円周面のスクリー
ンでろ過され、濃縮されながらスクリューによってスク
リーンの終端に向かって移送される。そして、このと
き、水分が分離された濃縮汚泥は、スクリーンのスリッ
トに沿って送られるので、スリットへの押込みが防止さ
れる。次に、濃縮汚泥は、圧密脱水ゾーンの傾斜円筒ス
クリーンの始端部に送り込まれ、搬送圧力と傾斜による
ヘッド圧により圧密されながら上昇する。上昇してきた
汚泥は、排出口の圧力調整用の背圧調整板による付勢圧
と搬送スクリューの搬送圧とで圧密脱水され、脱水汚泥
は負荷調整板を押し上げて排出される。そして、脱水汚
泥が圧密されて、スクリュー軸の負荷が増大し、スクリ
ュー軸の駆動機に上限設定値よりも過大トルクが検知さ
れた時に、背圧調整板を緩める方向に移動させる。スク
リュー軸の駆動機に下限設定値よりも過小トルクが検知
された時には、背圧調整板を付勢する方向に移動させる
ものである。BEST MODE FOR CARRYING OUT THE INVENTION The apparatus according to the present invention is configured as described above, and a stock solution press-fitted into a cylindrical filter in a concentrating zone is filtered by a screen on a circumferential surface by the pressurizing pressure, and concentrated. While being transferred toward the end of the screen by the screw. Then, at this time, the concentrated sludge from which the water has been separated is sent along the slit of the screen, so that pushing into the slit is prevented. Next, the concentrated sludge is sent to the start end of the inclined cylindrical screen in the consolidation dewatering zone, and rises while being condensed by the transport pressure and the head pressure due to the inclination. The rising sludge is condensed and dewatered by the urging pressure of the back pressure adjusting plate for adjusting the pressure at the discharge port and the conveying pressure of the conveying screw, and the dewatered sludge is pushed up by the load adjusting plate and discharged. Then, when the dewatered sludge is compacted and the load on the screw shaft is increased, and an excessive torque is detected in the screw shaft driving device beyond the upper limit set value, the back pressure adjusting plate is moved in a loosening direction. When a torque smaller than the lower limit set value is detected in the screw shaft driving device, the back pressure adjusting plate is moved in a direction for biasing.
【０００７】やがて、円筒状フイルターの目詰まりによ
り、原液の供給路の内圧が、上限設定圧よりも大きい負
荷となった時、圧力検出器の検知信号により、洗浄管の
電磁弁が開放され、洗浄管から洗浄水が噴射され、円筒
状フイルターと傾斜円筒フイルターは初期のろ過性を回
復することができる。そして、傾斜円筒フイルターの設
置角度は、ろ過性のよい原液は、後端部を立ち上がらせ
た急勾配として背圧を大きくし、難ろ過性の原液に対し
ては、勾配を緩くして、背圧を少なくし、ゆっくりと加
圧するように傾斜角度を設定すればよいものである。[0007] When the internal pressure of the stock solution supply passage becomes larger than the upper limit set pressure due to the clogging of the cylindrical filter, the solenoid valve of the washing pipe is opened by the detection signal of the pressure detector. Wash water is injected from the washing pipe, and the cylindrical filter and the inclined cylindrical filter can recover the initial filterability. The installation angle of the slanted cylindrical filter is such that the stock solution with good filterability has a large back pressure as a steep slope with the rear end rising, and the slope of the stock solution with poor filtration has a gentle slope. What is necessary is just to set the inclination angle so as to reduce the pressure and apply the pressure slowly.
【０００８】[0008]
【実施例】この発明に係る実施例を図面に基づき詳述す
ると、先ず図１において、符号１は円筒状フイルターで
あって、その周面には中心軸線方向に多数のスリットを
有するスクリーン２が張設してあり、円筒状フイルター
１の内部には、回転軸３にスクリュー羽根４を螺旋状に
巻き付けたスクリュー５が配設してあり、円筒状フイル
ター１の側板から突出させた回転軸３に嵌着したスプロ
ケット６に駆動モーター７がチェーン掛けしてあり、駆
動モーター７でスクリュー５を回転駆動するようにして
ある。なお、符号８はスプロケット６の前後に設けた回
転軸３の軸受である。符号９は原液の供給管であって、
円筒状フイルター１の側板を貫通して内部へ原液を供給
するようにしてあり、円筒状フイルター１の一端に供給
された原液は、スクリュー５で他端に移送されながらス
クリーン２からろ液を分離し濃縮するようにしてあり、
汚泥の濃縮ゾーンを形成している。なお、この原液の供
給管９は、スクリーン２周面の側端部から供給するよう
にしてもよいものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described in detail with reference to the accompanying drawings. First, in FIG. 1, reference numeral 1 denotes a cylindrical filter, and a screen 2 having a large number of slits on a peripheral surface thereof in a central axis direction. A screw 5 having a screw shaft 4 spirally wound around a rotating shaft 3 is disposed inside the cylindrical filter 1, and the rotating shaft 3 protrudes from a side plate of the cylindrical filter 1. A drive motor 7 is mounted on a chain around a sprocket 6 fitted on the shaft 5, and the drive motor 7 drives the screw 5 to rotate. Reference numeral 8 denotes a bearing for the rotating shaft 3 provided before and after the sprocket 6. Reference numeral 9 denotes an undiluted liquid supply pipe,
The stock solution is supplied to the inside through the side plate of the cylindrical filter 1, and the stock solution supplied to one end of the cylindrical filter 1 is separated from the screen 2 while being transferred to the other end by the screw 5. And concentrated.
It forms a sludge concentration zone. The supply pipe 9 for the stock solution may be supplied from the side end of the peripheral surface of the screen 2.
【０００９】符号１０は可撓性のあるアール状の連結管
であって、円筒状フイルター１の終端部に連結してあ
る。この連結管１０は、回動できるものであればよく、
フレキシブルパイプでも、伸縮性のあるカップリングで
もよいものである。連結管１０の後端には、その後方部
を上方に立ち上がらせて傾斜させた傾斜円筒フイルター
１１が連結してあり、その周面には、円筒状フイルター
１と同様、中心軸線方向に多数のスリットを設けたスク
リーン１２が張設してある。傾斜円筒フイルター１１の
終端部の排出口１３には、その周部に設けた蝶番１４に
枢着された背圧調整板１５が回動自在に設けてあり、こ
の背圧調整板１５はエアーシリンダー１６に連結され
て、常態においては、排出口１３を閉止する方向に付勢
するようにしてある。Reference numeral 10 denotes a flexible round connecting pipe which is connected to the end of the cylindrical filter 1. The connecting pipe 10 only needs to be rotatable.
A flexible pipe or an elastic coupling may be used. At the rear end of the connecting pipe 10, an inclined cylindrical filter 11 whose rear part is raised upward and inclined is connected, and on its peripheral surface, as in the case of the cylindrical filter 1, a large number of cylindrical filters 11 are provided in the central axis direction. A screen 12 provided with a slit is stretched. A back pressure adjusting plate 15 pivotally attached to a hinge 14 provided on a peripheral portion of the inclined cylindrical filter 11 is rotatably provided at a discharge port 13 at the end of the inclined cylindrical filter 11, and the back pressure adjusting plate 15 is an air cylinder. 16 and is normally urged in a direction to close the outlet 13.
【００１０】そして、傾斜円筒フイルター１１は、圧密
脱水ゾーンを形成してあり、円筒状フイルター１でろ液
を分離された濃縮汚泥は、スクリュー５により連結管１
０を経て、傾斜円筒フイルター１１に送り込まれる。濃
縮汚泥を傾斜面に沿ってスクリュー圧を掛けながら上昇
させ、スクリーン１２からろ液を分離して更に汚泥を濃
縮させる。一方、傾斜円筒フイルター１１の排出口１３
から流出しようとする汚泥を排出口１３の背圧調整板１
５で汚泥を塞き止めて背圧をかけながら、傾斜円筒フイ
ルター１１の上部でさらに圧搾脱水し、脱水された汚泥
は背圧調整板１５を押し広げながら排出するようにして
ある。傾斜円筒フイルター１１は、その下端部が可撓性
のある連結管１０に接続してあるので、原液のろ過性の
難易度により傾斜角度が換えられるようにしてある。符
号１７は傾斜円筒フイルター１１の排出口１３に設けた
汚泥排出用のケーキシュートである。The inclined cylindrical filter 11 forms a consolidation dewatering zone, and the concentrated sludge from which the filtrate has been separated by the cylindrical filter 1 is connected to the connecting pipe 1 by a screw 5.
After passing through 0, it is fed into the inclined cylindrical filter 11. The concentrated sludge is raised while applying screw pressure along the inclined surface, and the filtrate is separated from the screen 12 to further concentrate the sludge. On the other hand, the outlet 13 of the inclined cylindrical filter 11
Back pressure adjusting plate 1 of discharge port 13
While the sludge is blocked and applied with back pressure at 5, the dewatered sludge is further squeezed and dewatered at the upper part of the inclined cylindrical filter 11, and the dewatered sludge is discharged while spreading the back pressure adjusting plate 15. Since the lower end of the inclined cylindrical filter 11 is connected to the flexible connecting pipe 10, the inclination angle can be changed depending on the difficulty of filtering the undiluted solution. Reference numeral 17 denotes a cake chute provided at the discharge port 13 of the inclined cylindrical filter 11 for discharging sludge.
【００１１】上記スクリュー５の駆動モーター７には、
図２に示すように、駆動モーター７のトルクを検知する
トルク検出器１８と、検出した負荷電流を、予め設定し
てある上限設定トルク値及び下限設定トルク値とを比較
する比較器１９と、この比較器１９からの信号に基づき
制御信号を発する制御器２０を設けてある。また、背圧
調整板１５に連結したエアーシリンダー１６のエアー配
管２１には、電磁弁２２を介してエアータンク２３が連
結してあり、このエアータンク２３にコンプレッサー２
４から圧縮空気を供給するようにしてある。そして、ス
クリュー５の駆動モーター７に過大電流が流れた時に、
制御器２０の制御信号により電磁弁２２を操作して、シ
リンダー１６を作動させ、背圧調整板１５を緩める方向
に移動させ、駆動モーター７に過小電流が流れた時に
は、背圧調整板１５を付勢する方向に移動させるように
してある。The drive motor 7 of the screw 5 has:
As shown in FIG. 2, a torque detector 18 for detecting the torque of the drive motor 7, a comparator 19 for comparing the detected load current with a preset upper limit set torque value and a preset lower limit set torque value, A controller 20 for issuing a control signal based on the signal from the comparator 19 is provided. Further, an air tank 23 is connected via an electromagnetic valve 22 to an air pipe 21 of the air cylinder 16 connected to the back pressure adjusting plate 15.
4 to supply compressed air. When an excessive current flows through the drive motor 7 of the screw 5,
The solenoid valve 22 is operated by the control signal of the controller 20, the cylinder 16 is operated, the back pressure adjusting plate 15 is moved in a loosening direction, and when an undercurrent flows through the drive motor 7, the back pressure adjusting plate 15 is moved. It is designed to move in the direction of urging.
【００１２】円筒状フイルター１と傾斜円筒フイルター
１１には、図３及び図４に示すように、複数の洗浄管２
５、２６がその円周部の近傍に、軸芯線に沿って配設し
てあり、洗浄管２５、２６の一端にそれぞれ電磁弁２
７、２８が連結してある。そして、原液の供給管９には
圧力検出器２９と、検出した負荷電流を予め設定してあ
る圧力の上限設定値と比較する比較器３０と、この比較
器３０からの信号に基づき制御信号を発する制御器３１
とを配設し、原液の圧入圧が圧力の上限設定値を超えた
とき、制御器３１の制御信号により、洗浄管２５、２６
の電磁弁２７、２８を開放させて、円筒状フイルター１
と傾斜円筒フイルター１１のスクリーン２、１２のスリ
ットを洗浄し、ろ過性を回復するようにしてある。な
お、符号３２は複数の洗浄管２５、２６を連結したヘッ
ダー管である。符号３３は原液の圧送ポンプである。As shown in FIGS. 3 and 4, a plurality of washing pipes 2 are provided on the cylindrical filter 1 and the inclined cylindrical filter 11.
Numerals 5 and 26 are disposed in the vicinity of the circumference thereof along the axis of the axis.
7, 28 are connected. Then, a pressure detector 29, a comparator 30 for comparing the detected load current with a preset upper limit value of the pressure, and a control signal based on a signal from the comparator 30 are provided in the stock solution supply pipe 9. Emitting controller 31
When the injection pressure of the undiluted solution exceeds the upper limit set value of the pressure, the control signal of the controller 31 causes the cleaning pipes 25 and 26 to be disposed.
Of the cylindrical filter 1 by opening the electromagnetic valves 27 and 28 of the cylindrical filter 1
And the slits of the screens 2 and 12 of the inclined cylindrical filter 11 are washed to recover the filterability. Reference numeral 32 denotes a header tube connecting a plurality of cleaning tubes 25 and 26. Reference numeral 33 denotes a stock solution pump.
【００１３】[0013]
【発明の効果】この発明の加圧脱水機は、円筒状フイル
ターに内設したスクリューの駆動モーターのトルクを検
知して、傾斜円筒フイルターの排出口の背圧調整板を調
整して、汚泥に背圧を懸けるので、均一な脱水汚泥が得
られるものである。また、原液の供給管の圧力を検知し
て、洗浄管の電磁弁を開放してスクリーンを洗浄するの
で、連続的に濃縮、脱水を行いながらスクリーンの洗浄
を可能としたものである。そして、傾斜円筒フイルター
を傾動自在に配設したので、原液のろ過性の難易度に応
じて傾斜角度を調整し、汚泥に加わる背圧を換えること
ができるものである。なお、スクリーンのスリットを汚
泥の送り方向に設けておけば、汚泥がスリットに押込ま
れないものである。The pressurized dehydrator of the present invention detects the torque of the drive motor of the screw provided inside the cylindrical filter, adjusts the back pressure adjusting plate at the outlet of the inclined cylindrical filter, and converts the sludge into sludge. Since a back pressure is applied, uniform dewatered sludge can be obtained. Further, since the screen is washed by detecting the pressure of the stock solution supply pipe and opening the solenoid valve of the washing pipe, the screen can be washed while continuously concentrating and dewatering. Since the inclined cylindrical filter is disposed to be tiltable, the inclination angle can be adjusted according to the difficulty of filtering the stock solution, and the back pressure applied to the sludge can be changed. If the slit of the screen is provided in the sludge feeding direction, the sludge will not be pushed into the slit.
【図１】この発明に係る連続加圧脱水機の一部切断側面
図である。FIG. 1 is a partially cut-away side view of a continuous pressure dehydrator according to the present invention.
【図２】この発明に係る連続加圧脱水機の制御装置の作
動要領説明図である。FIG. 2 is an explanatory view of an operation procedure of a control device of the continuous pressure dehydrator according to the present invention.
【図３】同じく、スクリーンの洗浄装置の作動要領説明
図である。FIG. 3 is an explanatory view of an operation procedure of the screen cleaning device.
【図４】同じく、洗浄装置を取出して示す縦断側面図で
ある。FIG. 4 is a vertical sectional side view showing the cleaning device.
１ 円筒状フイルター ２、１２ スクリーン ５ スクリュー ７ 駆動モーター ９ 原液の供給管 １０ 連結管 １１ 傾斜円筒フイルター １３ 排出口 １５ 背圧調整板 １６ エアーシリンダー １８ トルク検出器 １９ 比較器 ２０ 制御器 ２５、２６ 洗浄管 ２７、２８ 電磁弁 ２９ 圧力検出器 ３０ 比較器 ３１ 制御器 DESCRIPTION OF SYMBOLS 1 Cylindrical filter 2, 12 Screen 5 Screw 7 Drive motor 9 Supply pipe of undiluted solution 10 Connecting pipe 11 Inclined cylindrical filter 13 Discharge port 15 Back pressure adjusting plate 16 Air cylinder 18 Torque detector 19 Comparator 20 Controller 25, 26 Washing Pipes 27, 28 Solenoid valve 29 Pressure detector 30 Comparator 31 Controller
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ３０Ｂ 9/14 Ｂ０１Ｄ 29/10 ５３０Ｄ 29/30 ５０１ 29/36 Ｚ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (Reference) B30B 9/14 B01D 29/10 530D 29/30 501 29/36 Z
Claims (5)
在なスクリュー（５）を支架した濃縮ゾーンと、円筒状
フイルター（１）の後端部に傾斜円筒フイルター（１
１）を連結した脱水ゾーンとを有する脱水機において、
上記スクリュー（５）の駆動モーター（７）にトルク検
出器（１８）を設け、このトルク検出器（１８）の検知
信号を傾斜円筒フイルター（１１）の排出口（１３）の
背圧調整板（１５）に連動させることを特徴とする連続
加圧脱水機。1. A concentration zone in which a rotatable screw (5) is supported inside a cylindrical filter (1), and an inclined cylindrical filter (1) is provided at the rear end of the cylindrical filter (1).
In a dehydrator having a dehydration zone connected to 1),
The drive motor (7) of the screw (5) is provided with a torque detector (18), and the detection signal of the torque detector (18) is transmitted to the back pressure adjusting plate (11) of the outlet (13) of the inclined cylindrical filter (11). 15) A continuous pressurized dewatering machine characterized by being linked to 15).
（７）に、そのトルクを検知するトルク検出器（１８）
と、検出した負荷電流を、予め設定してある上限設定ト
ルク及び下限設定トルクの設定値と比較する比較器（１
９）と、この比較器（１９）からの信号に基づき制御信
号を発する制御器（２０）を設け、その制御信号によ
り、スクリュー（５）の駆動モーター（７）に過大電流
が流れた時に、シリンダー（１６）を作動して背圧調整
板（１５）を緩める方向に移動させ、駆動モーター
（７）に過小電流が流れた時に、背圧調整板（１５）を
付勢する方向に移動させることを特徴とする請求項１記
載の連続加圧脱水機。2. A torque detector (18) for detecting a torque of a drive motor (7) of the screw (5).
And a comparator (1) that compares the detected load current with preset values of an upper limit set torque and a lower limit set torque.
9) and a controller (20) for generating a control signal based on the signal from the comparator (19). When an excessive current flows through the drive motor (7) of the screw (5) by the control signal, The cylinder (16) is operated to move the back pressure adjusting plate (15) in the direction of loosening, and when an undercurrent flows to the drive motor (7), the back pressure adjusting plate (15) is moved in the direction of urging. The continuous pressurized dewatering machine according to claim 1, wherein:
イルター（１１）の周部近傍に洗浄管（２５）、（２
６）を設け、原液の供給管（９）に圧力検出器（２９）
と、検出した負荷電流を予め設定してある圧力の上限設
定値と比較する比較器（３０）と、この比較器（３０）
からの信号に基づき制御信号を発する制御器（３１）と
を設け、その制御信号により、洗浄管（２５）、（２
６）の電磁弁（２７）、（２８）を開放させることを特
徴とする請求項１乃至２記載の連続加圧脱水機。3. Washing pipes (25), (2) near the peripheral parts of the cylindrical filter (1) and the inclined cylindrical filter (11).
6), and a pressure detector (29) is connected to the stock solution supply pipe (9).
A comparator (30) for comparing the detected load current with a preset upper limit value of the pressure, and a comparator (30)
And a controller (31) for issuing a control signal based on a signal from the washing pipe (25), (2)
3. The continuous pressurized dehydrator according to claim 1, wherein the solenoid valves (27) and (28) of (6) are opened.
イルター（１１）の間に可撓性の連結管（１０）を接続
し、原液のろ過性の難易度に基づき、傾斜円筒フイルタ
ー（１１）の傾斜角を換えることを特徴とする請求項１
乃至４記載の連続加圧脱水機。4. A flexible connecting pipe (10) is connected between the cylindrical filter (1) and the inclined cylindrical filter (11), and based on the difficulty of filtering the undiluted solution, the inclined cylindrical filter (11) is connected. 2. The method according to claim 1, wherein the inclination angle is changed.
5. A continuous pressure dehydrator according to any one of items 1 to 4.
フイルター（１１）の外周ろ過面が、原水の送り方向に
スリットを有するスクリーン（２）、（１２）であるこ
とを特徴とする請求項１乃至４記載の連続加圧脱水機。5. The filter according to claim 1, wherein the outer peripheral filtration surfaces of the cylindrical filter (1) and the inclined cylindrical filter (11) are screens (2) and (12) having slits in the feed direction of raw water. 5. The continuous pressure dehydrator according to any one of 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09741899A JP3675219B2 (en) | 1999-04-05 | 1999-04-05 | Continuous pressure dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09741899A JP3675219B2 (en) | 1999-04-05 | 1999-04-05 | Continuous pressure dehydrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000288596A true JP2000288596A (en) | 2000-10-17 |
| JP3675219B2 JP3675219B2 (en) | 2005-07-27 |
Family
ID=14191917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09741899A Expired - Fee Related JP3675219B2 (en) | 1999-04-05 | 1999-04-05 | Continuous pressure dehydrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3675219B2 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003088711A (en) * | 2001-09-20 | 2003-03-25 | Ishigaki Co Ltd | Continuous pressure dehydrator |
| JP2003094199A (en) * | 2001-09-20 | 2003-04-02 | Ishigaki Co Ltd | Continuous hydroextractor |
| JP2004167325A (en) * | 2002-11-18 | 2004-06-17 | Nippon Tekku Kk | Screw dehydrator |
| JP2007508139A (en) * | 2003-10-15 | 2007-04-05 | ノルディック ウォーター プロダクツ エービー | Apparatus and method for sludge treatment |
| WO2007057293A1 (en) * | 2005-11-15 | 2007-05-24 | C.M.S. S.P.A. | Apparatus for automatically regulating the action of the constriction means arranged on the discharge mouth of screw presses |
| FR2948060A1 (en) * | 2009-07-16 | 2011-01-21 | Andre Gonod | Rapid removable startup device for use in manual densification press for densification of vegetation wastes of agricultural field and forest, has back pressure unit integrated with slide and provided in free end of densification line |
| JP2011255323A (en) * | 2010-06-09 | 2011-12-22 | Furomu Kogyo:Kk | Solid-liquid separation recovery apparatus |
| JP2012012898A (en) * | 2010-07-05 | 2012-01-19 | Nishihara Environment Co Ltd | Impurity removal device |
| WO2013033770A1 (en) * | 2011-09-06 | 2013-03-14 | Anaeco Limited | Dewatering method and apparatus |
| CN104773941A (en) * | 2015-04-27 | 2015-07-15 | 苏州市吴中区甪直明达漂染厂 | Automatic compressing and dewatering device for bleaching and dyeing sludge |
| JP2018001076A (en) * | 2016-06-30 | 2018-01-11 | 株式会社石垣 | Method for constant controlling screw shaft torque in screw press |
| JP2018001075A (en) * | 2016-06-30 | 2018-01-11 | 株式会社石垣 | Method for constant controlling screw shaft torque in screw press |
| EP3597417A1 (en) * | 2018-07-20 | 2020-01-22 | US Farm Systems, Inc. | Screw press for separation of liquids from bulk materials |
| CN110803850A (en) * | 2019-12-10 | 2020-02-18 | 江苏汉盛海洋装备技术有限公司 | Fold spiral shell formula sludge dewaterer's ejection of compact automatically regulated mechanism |
| CN114797287A (en) * | 2022-05-12 | 2022-07-29 | 江苏华东正大空调设备有限公司 | Air conditioner refrigeration plant filter screen belt cleaning device |
| DE102021119019A1 (en) | 2021-07-22 | 2023-01-26 | Röhren- Und Pumpenwerk Bauer Ges.M.B.H. | Ejection device of a press screw separator |
| CN117645339A (en) * | 2024-01-23 | 2024-03-05 | 利得环境科技（北京）有限公司 | Sludge separation device for coal chemical wastewater treatment |
-
1999
- 1999-04-05 JP JP09741899A patent/JP3675219B2/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003088711A (en) * | 2001-09-20 | 2003-03-25 | Ishigaki Co Ltd | Continuous pressure dehydrator |
| JP2003094199A (en) * | 2001-09-20 | 2003-04-02 | Ishigaki Co Ltd | Continuous hydroextractor |
| JP2004167325A (en) * | 2002-11-18 | 2004-06-17 | Nippon Tekku Kk | Screw dehydrator |
| JP2007508139A (en) * | 2003-10-15 | 2007-04-05 | ノルディック ウォーター プロダクツ エービー | Apparatus and method for sludge treatment |
| WO2007057293A1 (en) * | 2005-11-15 | 2007-05-24 | C.M.S. S.P.A. | Apparatus for automatically regulating the action of the constriction means arranged on the discharge mouth of screw presses |
| FR2948060A1 (en) * | 2009-07-16 | 2011-01-21 | Andre Gonod | Rapid removable startup device for use in manual densification press for densification of vegetation wastes of agricultural field and forest, has back pressure unit integrated with slide and provided in free end of densification line |
| JP2011255323A (en) * | 2010-06-09 | 2011-12-22 | Furomu Kogyo:Kk | Solid-liquid separation recovery apparatus |
| JP2012012898A (en) * | 2010-07-05 | 2012-01-19 | Nishihara Environment Co Ltd | Impurity removal device |
| AU2012372892B2 (en) * | 2011-09-06 | 2015-02-19 | Anaeco Limited | Dewatering method and apparatus |
| CN104010977A (en) * | 2011-09-06 | 2014-08-27 | 安纳科股份有限公司 | Dewatering method and apparatus |
| WO2013033770A1 (en) * | 2011-09-06 | 2013-03-14 | Anaeco Limited | Dewatering method and apparatus |
| CN104010977B (en) * | 2011-09-06 | 2016-04-20 | 安纳科股份有限公司 | Dewatering and device |
| CN104773941A (en) * | 2015-04-27 | 2015-07-15 | 苏州市吴中区甪直明达漂染厂 | Automatic compressing and dewatering device for bleaching and dyeing sludge |
| CN104773941B (en) * | 2015-04-27 | 2017-02-01 | 苏州市凯业金属制品有限公司 | Automatic compressing and dewatering device for bleaching and dyeing sludge |
| JP2018001075A (en) * | 2016-06-30 | 2018-01-11 | 株式会社石垣 | Method for constant controlling screw shaft torque in screw press |
| JP2018001076A (en) * | 2016-06-30 | 2018-01-11 | 株式会社石垣 | Method for constant controlling screw shaft torque in screw press |
| EP3597417A1 (en) * | 2018-07-20 | 2020-01-22 | US Farm Systems, Inc. | Screw press for separation of liquids from bulk materials |
| CN110803850A (en) * | 2019-12-10 | 2020-02-18 | 江苏汉盛海洋装备技术有限公司 | Fold spiral shell formula sludge dewaterer's ejection of compact automatically regulated mechanism |
| DE102021119019A1 (en) | 2021-07-22 | 2023-01-26 | Röhren- Und Pumpenwerk Bauer Ges.M.B.H. | Ejection device of a press screw separator |
| WO2023001748A1 (en) * | 2021-07-22 | 2023-01-26 | Röhren- Und Pumpenwerk Bauer Ges.M.B.H. | Ejection device of a screw-press separator |
| CN114797287A (en) * | 2022-05-12 | 2022-07-29 | 江苏华东正大空调设备有限公司 | Air conditioner refrigeration plant filter screen belt cleaning device |
| CN114797287B (en) * | 2022-05-12 | 2023-02-10 | 江苏华东正大空调设备有限公司 | Air conditioner refrigeration plant filter screen belt cleaning device |
| CN117645339A (en) * | 2024-01-23 | 2024-03-05 | 利得环境科技（北京）有限公司 | Sludge separation device for coal chemical wastewater treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3675219B2 (en) | 2005-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2000288596A (en) | Continuous pressure dehydrator | |
| JP2004130274A (en) | Screw-extruding dewatering-equipment and its operation method | |
| US20010001457A1 (en) | Methods and apparatus for de-watering sludge | |
| JP4420595B2 (en) | Solid-liquid separator | |
| JP3800408B2 (en) | Concentrator, continuous pressure dehydrator using a concentrator, and mobile dehydrator | |
| CN208454757U (en) | A kind of dyeing waste water and sludge treating system | |
| JP3775232B2 (en) | Screw press with concentration function | |
| JP4702358B2 (en) | Screw press with concentration mechanism | |
| JP4532722B2 (en) | Screw press | |
| JP3944723B2 (en) | Screw press with concentration function | |
| JP5041299B2 (en) | Operation control method of screw press connected to rotary concentrator | |
| JP4152179B2 (en) | Screw press and dewatering method | |
| JP3675220B2 (en) | Continuous pressure dehydrator | |
| JP2010247044A5 (en) | ||
| JP2013107022A (en) | Filter medium type centrifugal dehydrator | |
| US5406883A (en) | Dewatering press for compressibly dewaterable material | |
| JP3196922B2 (en) | Sludge thickener | |
| KR200232306Y1 (en) | oil heating type screw press | |
| JP3794554B2 (en) | Continuous pressure dehydrator | |
| JPH04118198A (en) | Device for removing blinding of screen drum of screw press | |
| JP2002273400A (en) | Operation method for organic wastes transfer system | |
| CN213680330U (en) | Energy-efficient mud dehydration device | |
| CN206986007U (en) | The movable type sludge dehydration car of adjustable conveying sludge cake device | |
| CN117383785B (en) | Centrifugal separation device for energy-saving river sludge treatment | |
| CN213708088U (en) | Sludge filter pressing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040609 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040615 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040628 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20050412 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20050425 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080513 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090513 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100513 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100513 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110513 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120513 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |