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JP4465384B2 - Screw press pretreatment equipment - Google Patents
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JP4465384B2 - Screw press pretreatment equipment - Google Patents

Screw press pretreatment equipment Download PDF

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JP4465384B2
JP4465384B2 JP2007324254A JP2007324254A JP4465384B2 JP 4465384 B2 JP4465384 B2 JP 4465384B2 JP 2007324254 A JP2007324254 A JP 2007324254A JP 2007324254 A JP2007324254 A JP 2007324254A JP 4465384 B2 JP4465384 B2 JP 4465384B2
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raw material
screen drum
screw press
dehydrated
dewatering
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JP2009142773A (en
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久一郎 佐々木
信 佐々木
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Fukoku Kogyo Co Ltd
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Fukoku Kogyo Co Ltd
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Priority to JP2007324254A priority Critical patent/JP4465384B2/en
Priority to CNA2008100971908A priority patent/CN101462372A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B9/00Presses specially adapted for particular purposes
    • B30B9/02Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12Presses 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
    • B30B9/127Feed means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtration Of Liquid (AREA)
  • Treatment Of Sludge (AREA)

Description

本発明は、例えば下水、余剰、掘削汚泥のような大量の水分を含む含水原料から水分を脱水する場合に、予備脱水を行うスクリュプレスの前処理装置に関するものである。   The present invention relates to a pretreatment device for a screw press that performs preliminary dewatering when water is dehydrated from a water-containing raw material containing a large amount of water such as sewage, surplus, and drilling sludge.

大量の水分を含んだ原料に対し脱水を行う場合に、従来の一般的なスクリュプレスの前にロータリスクリーンを配して、予備的な脱水を行うことがある。   In the case of dehydrating a raw material containing a large amount of moisture, a preliminary dehydration may be performed by arranging a rotary screen before a conventional general screw press.

しかし、上述のロータリスクリーンに大量の水分を含んだ含水原料を直接に投入すると、スクリュにより撹拌されて、凝集していた含水原料が液状化してしまい、脱水効率を悪化させるという問題を有している。   However, when a water-containing raw material containing a large amount of water is directly put into the rotary screen described above, the water-containing raw material that has been agglomerated by the screw is liquefied, and the dehydration efficiency is deteriorated. Yes.

本発明の目的は、上述の問題点を解消し、スクリュプレスに含水原料を投入する前段階で、含水量を予備的に低下させるスクリュプレスの前処理装置を提供することにある。   An object of the present invention is to provide a pretreatment device for a screw press that eliminates the above-mentioned problems and that preliminarily reduces the water content at the stage before the water-containing raw material is introduced into the screw press.

上記目的を達成するための本発明に係るスクリュプレスの前処理装置は、脱水処理を行うスクリュプレスの原料投入口の上方に配置し、原料の水分を予備的に低下させるためのスクリュプレスの前処理装置において、多数の脱水孔を有する円筒形の回転自在のスクリーンドラムと、該スクリーンドラムの表面上に原料を供給する供給口と、前記スクリーンドラムの表面の上方に設け前記供給口から供給された原料を前記スクリーンドラムの表面上で前記スクリーンドラムの回転に伴い軸方向に平滑化して拡散させるための拡散板と、前記スクリーンドラムにより脱水した前記原料を前記原料投入口に投下する投下口とを備え、前記原料を前記スクリーンドラムの表面上で回転方向に移動中に前記脱水孔から前記原料中の水分を前記スクリーンドラムの内部に落下させて予備脱水を行い、予備脱水した前記原料を前記投下口を介して前記スクリュプレスの前記原料投入口に投下することを特徴とする。 In order to achieve the above object, a screw press pretreatment device according to the present invention is disposed above a raw material inlet of a screw press for performing a dehydration process, and before a screw press for preliminarily reducing the water content of the raw material. In the processing apparatus, a cylindrical rotatable screen drum having a number of dewatering holes, a supply port for supplying a raw material on the surface of the screen drum, and a supply port provided above the surface of the screen drum and supplied from the supply port A diffusion plate for smoothing and diffusing the raw material on the surface of the screen drum in the axial direction as the screen drum rotates, and a dropping port for dropping the raw material dehydrated by the screen drum to the raw material charging port; wherein the screen moisture in said material from the spin-drying hole during movement of the material in the direction of rotation on the surface of the screen drum A preliminary dewatering by dropping into the interior of the ram, characterized by dropping the raw material preliminary dewatering the raw material inlet of the screw press via said input opening.

本発明に係るスクリュプレスの前処理装置によれば、含水原料の水分量を低下させて、スクリュプレスに投入することができ、スクリュプレスの脱水処理能力が向上する。   According to the pretreatment device for a screw press according to the present invention, the moisture content of the water-containing raw material can be reduced and put into the screw press, and the dewatering capacity of the screw press is improved.

本発明を図示の実施例に基づいて詳細に説明する。
図1はスクリュプレスの原料投入口に、前処理装置を取り付けた状態の断面図を示している。多数の濾過孔を有するパンチングメタルから成り、円筒状に形成された濾過筒1内には、スクリュ羽根2を螺旋状に取り付けたスクリュ軸3が支承されている。スクリュ軸3は等径としてスクリュ羽根2は下流に向うにつれそのピッチが小さくされている。或いは、スクリュ軸3は下流に向うにつれ大径となるテーパ状とし、スクリュ羽根2は等ピッチで設けてもよい。
The present invention will be described in detail based on the embodiments shown in the drawings.
FIG. 1 shows a cross-sectional view of a state in which a pretreatment device is attached to a raw material inlet of a screw press. A screw shaft 3 having a screw blade 2 attached in a spiral shape is supported in a cylindrically formed filter tube 1 made of a punching metal having a large number of filter holes. The screw shaft 3 has the same diameter, and the pitch of the screw blade 2 decreases as it goes downstream. Alternatively, the screw shaft 3 may have a tapered shape having a larger diameter as it goes downstream, and the screw blades 2 may be provided at an equal pitch.

濾過筒1の一端には、原料を濾過筒1内に投入するための原料投入口4が設けられ、濾過筒1の他端には脱水ケーキを排出するための原料排出口5が設けられている。原料排出口5には、テーパコーン6が設けられ、テーパコーン6は押圧機構7により常時上流側に付勢されている。また、濾過筒1の原料投入口4の上部には、濾過筒1に原料を投入する前段階で、原料の水分量を予備的に低下させるための前処理装置8が構設されている。   One end of the filter cylinder 1 is provided with a raw material inlet 4 for introducing the raw material into the filter cylinder 1, and the other end of the filter cylinder 1 is provided with a raw material outlet 5 for discharging the dehydrated cake. Yes. The raw material discharge port 5 is provided with a tapered cone 6, and the tapered cone 6 is always urged upstream by a pressing mechanism 7. In addition, a pretreatment device 8 for preliminarily reducing the moisture content of the raw material is provided at the upper part of the raw material inlet 4 of the filter tube 1 before the raw material is charged into the filter tube 1.

図2は前処理装置8の拡大断面図、図3は拡大平面図をそれぞれを示しており、枠体に囲まれた前処理装置8内には、多数の脱水孔11が穿けられた例えばパンチングメタルや金網から成る円筒形のスクリーンドラム12が、両側の支持部材13を介して軸14により回転自在に設けられ、図示しないモータにより矢印方向に回転されている。スクリーンドラム12の斜め上方の回転方向の上流側には、原料Sを供給する供給口15が設けられている。供給口15の近傍には、供給口15から投入された原料Sをスクリーンドラム12の軸方向に平滑化しながら拡散させるために、スクリーンドラム12との間隔を調整可能とする拡散板16が設けられている。拡散板16は上下に昇降可能とするだけでなく、前後方向に移動可能となっている。また、前処理装置8の下部には、スクリーンドラム12により脱水した原料Sを、スクリュプレスの原料投入口4に導く原料投下口17が設けられている。   FIG. 2 is an enlarged cross-sectional view of the pretreatment device 8, and FIG. 3 is an enlarged plan view. In the pretreatment device 8 surrounded by the frame, a number of dewatering holes 11 are formed, for example punching A cylindrical screen drum 12 made of metal or wire mesh is rotatably provided by a shaft 14 via support members 13 on both sides, and is rotated in the direction of an arrow by a motor (not shown). A supply port 15 for supplying the raw material S is provided on the upstream side in the rotational direction obliquely above the screen drum 12. In the vicinity of the supply port 15, a diffusion plate 16 that can adjust the distance from the screen drum 12 is provided in order to diffuse the raw material S introduced from the supply port 15 while smoothing it in the axial direction of the screen drum 12. ing. The diffuser plate 16 can be moved up and down as well as vertically. Further, a raw material dropping port 17 that guides the raw material S dehydrated by the screen drum 12 to the raw material charging port 4 of the screw press is provided below the pretreatment device 8.

また、スクリーンドラム12の下方には、スクリーンドラム12の脱水孔11の目詰りを除去するために、水を噴射する洗浄ノズル18がスクリーンドラム12に向けて設けられている。なお、洗浄ノズル18はスクリーンドラム12の軸方向に沿って複数個設けられているが、少数の洗浄ノズル18を軸方向に沿って移動しながら洗浄してもよい。また、スクリーンドラム12の側部から下部に向けて脱水した原料Sを案内すると共に、脱水した水分を集めるための案内板19が設けられている。また、前処理装置8の下部側方には排水口20が設けられ、案内板19により集められた脱水した水分及び洗浄ノズル18から噴射された水分を排水口20から排水するようにされている。   Further, below the screen drum 12, a cleaning nozzle 18 for spraying water is provided toward the screen drum 12 in order to remove clogging of the dewatering holes 11 of the screen drum 12. Although a plurality of cleaning nozzles 18 are provided along the axial direction of the screen drum 12, a small number of cleaning nozzles 18 may be cleaned while moving along the axial direction. In addition, a guide plate 19 is provided for guiding the dehydrated raw material S from the side of the screen drum 12 toward the lower portion and collecting the dehydrated moisture. Further, a drain port 20 is provided on the lower side of the pretreatment device 8 so that the dehydrated water collected by the guide plate 19 and the water sprayed from the cleaning nozzle 18 are drained from the drain port 20. .

使用に際して、スクリーンドラム12はモータにより軸14を介して毎分5〜15回転の速度で回転している。供給口15から連続的に投入された原料Sは、拡散板16によりスクリーンドラム12の表面上において、その軸方向に拡散されて平滑され、スクリーンドラム12の表面上を回転方向に運搬される。なお、スクリーンドラム12と拡散板16の間の間隔は、拡散板16の位置を調整することにより変更でき、供給する原料Sの含水量等によりその間隔を調整することが好ましい。   In use, the screen drum 12 is rotated at a speed of 5 to 15 revolutions per minute via a shaft 14 by a motor. The raw material S continuously fed from the supply port 15 is diffused and smoothed in the axial direction on the surface of the screen drum 12 by the diffusion plate 16 and is transported in the rotational direction on the surface of the screen drum 12. The interval between the screen drum 12 and the diffusion plate 16 can be changed by adjusting the position of the diffusion plate 16, and it is preferable to adjust the interval according to the water content of the raw material S to be supplied.

そして、原料Sがスクリーンドラム12の表面上を移動中に、多数の脱水孔11から原料中の水分が自重によりスクリーンドラム12の内部に落下することにより脱水される。脱水された水分はスクリーンドラム12の下側の脱水孔11を経てスクリーンドラム12の下方に落下し、案内板19により集められ排水口20に排水される。予備脱水された原料Sは案内板19により案内され、原料投下口17を介して順次にスクリュプレスの原料投入口4に投入される。   While the raw material S is moving on the surface of the screen drum 12, water in the raw material falls into the screen drum 12 due to its own weight from the many dewatering holes 11, thereby dehydrating. The dehydrated water falls below the screen drum 12 through the dewatering hole 11 on the lower side of the screen drum 12, is collected by the guide plate 19, and is drained to the drain port 20. The pre-dehydrated raw material S is guided by the guide plate 19 and sequentially supplied to the raw material inlet 4 of the screw press through the raw material outlet 17.

また、スクリーンドラム12の下方に設けた洗浄ノズル18からスクリーンドラム12の下面に向けて洗浄水が噴射され、スクリーンドラム12の脱水孔11の目詰りを洗浄している。そして、洗浄ノズル18の水分は排水口20から排水される。これにより、スクリーンドラム12は常に目詰まりのない脱水孔11が確保できることになる。   Further, cleaning water is sprayed from a cleaning nozzle 18 provided below the screen drum 12 toward the lower surface of the screen drum 12 to clean the clogging of the dewatering holes 11 of the screen drum 12. Then, the water in the cleaning nozzle 18 is drained from the drain port 20. Thereby, the screen drum 12 can always secure the dewatering hole 11 without clogging.

前処理装置8において予備脱水された原料Sは、原料投下口17、原料投入口4を介してスクリュプレス内に投入され、濾過筒1、スクリュ羽根2、スクリュ軸3によって囲まれた空間において搬送され、この空間が徐々に狭くなることにより原料Sが圧搾されて、濾過孔により濾過され、脱水ケーキとして原料排出口5から排出される。   The raw material S preliminarily dehydrated in the pretreatment device 8 is fed into the screw press through the raw material dropping port 17 and the raw material loading port 4 and is transported in a space surrounded by the filter cylinder 1, screw blade 2 and screw shaft 3. The raw material S is squeezed by gradually narrowing this space, filtered through a filter hole, and discharged from the raw material outlet 5 as a dehydrated cake.

このように、前処理装置8はスクリーンドラム12の前段階において、水分を自重により予備的に脱水することにより、スクリュプレスにおいては凝集した原料Sを液状化させることなく脱水でき、脱水効率を向上させることができる。   Thus, the pretreatment device 8 can dehydrate the aggregated raw material S without liquefaction in the screw press by preliminarily dehydrating the moisture by its own weight in the previous stage of the screen drum 12, thereby improving dewatering efficiency. Can be made.

なお本実施例においては、拡散板16を設けることにより、原料Sをスクリーンドラム12の軸方向に拡散したが、原料Sを供給する供給口15の形状を規制することにより、拡散板16を省略することもできる。   In this embodiment, the diffusion plate 16 is provided to diffuse the raw material S in the axial direction of the screen drum 12, but the diffusion plate 16 is omitted by regulating the shape of the supply port 15 for supplying the raw material S. You can also

スクリュプレスの原料投入口に前処理装置を取り付けた状態の断面図である。It is sectional drawing of the state which attached the pre-processing apparatus to the raw material inlet of a screw press. 前処理装置の拡大断面図である。It is an expanded sectional view of a pretreatment device. 前処理装置の拡大平面図である。It is an enlarged plan view of a pretreatment device.

符号の説明Explanation of symbols

1 濾過筒
2 スクリュ羽根
3 スクリュ軸
4 原料投入口
5 原料排出口
8 前処理装置
11 脱水孔
12 スクリーンドラム
13 支持部材
14 軸
15 供給口
16 拡散板
17 原料投下口
18 洗浄ノズル
19 案内板
20 排水口
S 原料
DESCRIPTION OF SYMBOLS 1 Filter cylinder 2 Screw blade 3 Screw shaft 4 Raw material inlet 5 Raw material outlet 8 Pretreatment device 11 Dehydration hole 12 Screen drum 13 Support member 14 Shaft 15 Supply port 16 Diffusion plate 17 Raw material drop port 18 Cleaning nozzle 19 Guide plate 20 Drainage Mouth S Raw material

Claims (3)

脱水処理を行うスクリュプレスの原料投入口の上方に配置し、原料の水分を予備的に低下させるためのスクリュプレスの前処理装置において、多数の脱水孔を有する円筒形の回転自在のスクリーンドラムと、該スクリーンドラムの表面上に原料を供給する供給口と、前記スクリーンドラムの表面の上方に設け前記供給口から供給された原料を前記スクリーンドラムの表面上で前記スクリーンドラムの回転に伴い軸方向に平滑化して拡散させるための拡散板と、前記スクリーンドラムにより脱水した前記原料を前記原料投入口に投下する投下口とを備え、前記原料を前記スクリーンドラムの表面上で回転方向に移動中に前記脱水孔から前記原料中の水分を前記スクリーンドラムの内部に落下させて予備脱水を行い、予備脱水した前記原料を前記投下口を介して前記スクリュプレスの前記原料投入口に投下することを特徴とするスクリュプレスの前処理装置。 A cylindrical rotary screen drum having a large number of dewatering holes in a pre-processing device for a screw press, which is disposed above a raw material inlet of a screw press for performing dehydration treatment and preliminarily lowers moisture of the raw material, A supply port for supplying a raw material on the surface of the screen drum; and an axial direction provided along with the rotation of the screen drum on the surface of the screen drum. a diffusion plate for diffusing and smoothing, the raw material dehydrated by the screen drum and a dropping port to drop the material inlet, the raw material during movement in the rotational direction on the surface of the screen drum wherein the water in said raw material from dehydrated hole is dropped into the interior of the screen drum and preliminarily dried, the said raw material preliminary dewatering Pretreatment apparatus of the screw press, characterized in that through the lower opening to drop the raw material inlet of the screw press. 前記拡散板は取付位置及び前記スクリーンドラムの表面との間隔を調整可能としたことを特徴とする請求項に記載のスクリュプレスの前処理装置。 2. The screw press pretreatment device according to claim 1 , wherein the diffusion plate is adjustable in an attachment position and a distance from the surface of the screen drum. 前記脱水孔の目詰りを洗浄するために、前記スクリーンドラムの回転中に前記スクリーンドラムの下方から前記脱水孔に向けて水を噴射する洗浄手段を設けたことを特徴とする請求項1又は2に記載のスクリュプレスの前処理装置。 Wherein for cleaning the clogging of the dewatering holes, claim 1, characterized in from below the screen drum during rotation of the screen drum to the provision of cleaning means for spraying water toward the dewatering holes or 2 A pre-processing device for a screw press according to 1.
JP2007324254A 2007-12-17 2007-12-17 Screw press pretreatment equipment Active JP4465384B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007324254A JP4465384B2 (en) 2007-12-17 2007-12-17 Screw press pretreatment equipment
CNA2008100971908A CN101462372A (en) 2007-12-17 2008-05-19 Pretreatment apparatus of screw press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007324254A JP4465384B2 (en) 2007-12-17 2007-12-17 Screw press pretreatment equipment

Publications (2)

Publication Number Publication Date
JP2009142773A JP2009142773A (en) 2009-07-02
JP4465384B2 true JP4465384B2 (en) 2010-05-19

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CN (1) CN101462372A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102524919A (en) * 2011-11-25 2012-07-04 冯水珑 Cassava dreg drying press
CN103157546B (en) * 2011-12-09 2015-04-15 金易通科技(北京)股份有限公司 Jigging machine with entered material pretreatment function
CN104608419A (en) * 2015-01-30 2015-05-13 河南百汇环境工程有限公司 Discharging structure of screw press dehydrator
CN109208371B (en) * 2018-11-14 2020-11-03 徐州亮华环保科技有限公司 Solid-liquid separation method for paper pulp for papermaking
CN112248511B (en) * 2020-09-28 2022-08-09 兰州理工大学 Solid-liquid separation device
CN118084291B (en) * 2024-04-17 2024-06-28 乾坤环保股份有限公司 Belt-type sludge thickening and squeezing integrated machine and operation method thereof

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CN101462372A (en) 2009-06-24
JP2009142773A (en) 2009-07-02

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