JP2009142873A

JP2009142873A - Screw press

Info

Publication number: JP2009142873A
Application number: JP2007324255A
Authority: JP
Inventors: Kyuichiro Sasaki; 久一郎佐々木; Naotaka Omi; 直孝近江
Original assignee: FUKOKU KOGYO KK
Current assignee: FUKOKU KOGYO KK
Priority date: 2007-12-17
Filing date: 2007-12-17
Publication date: 2009-07-02

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screw press where filtering holes are cleaned with brushes from the inside of a filtering tube, and clogging is prevented. <P>SOLUTION: The Brushes 15 are fixed along the periphery by about several pitches of a screw blade 6 at the inlet part side, and the brushes 15 are slid along the inner circumference of the filtering tube 8. The brushes 15 are arranged along the edge part of the screw blade 6 using circular brush pressing plates 18, and are fixed to the screw blade 6 with bolts 20 and nuts. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、例えば魚粕、パルプ、汚泥のような大量の水分を含む含水原料から水分を分離するために用いられるスクリュプレスに関するものである。 The present invention relates to a screw press used for separating water from a water-containing raw material containing a large amount of water such as fish salmon, pulp and sludge.

従来のスクリュプレスにおいては、内部の回転スクリュと円筒状に構成した濾過筒とを相対的に回転させながら、濾過筒の入口部から水分を大量に含んだ含水原料を投入する。そして、濾過筒の濾過孔を介して水分を圧搾脱水した後に、脱水された残りの原料は脱水ケーキとして、出口部から排出するようにしたものが一般的である。 In a conventional screw press, a water-containing raw material containing a large amount of moisture is introduced from an inlet portion of a filter cylinder while relatively rotating an internal rotary screw and a cylindrical filter cylinder. Then, after the water is squeezed and dehydrated through the filter hole of the filter cylinder, the remaining raw material dehydrated is generally discharged from the outlet as a dehydrated cake.

しかし、使用中に濾過筒の脱水孔が目詰りしたり、スクリュ羽根と濾過筒との隙間にケーキが膜状に付着し、脱水効率が低減するという問題がある。 However, there is a problem that the dewatering hole of the filter cylinder is clogged during use, or the cake adheres in the form of a film in the gap between the screw blade and the filter cylinder, thereby reducing the dewatering efficiency.

本発明の目的は、上述の問題点を解消し、常時、濾過筒の内側から清掃部材により清掃し、脱水効率の低下を防止するスクリュプレスを提供することにある。 An object of the present invention is to provide a screw press that solves the above-described problems and that is always cleaned from the inside of a filter cylinder by a cleaning member to prevent a reduction in dewatering efficiency.

上述の目的を達成するための本発明に係るスクリュプレスは、駆動手段により回転するスクリュ軸と、該スクリュ軸の外周に螺旋状に設けたスクリュ羽根と、該スクリュ羽根を囲む円筒状の濾過筒とから成り、該濾過筒の両端部に入口部と出口部を設け、前記スクリュ軸と前記スクリュ羽根と前記濾過筒によって囲んだ空間部を前記入口部から前記出口部に向けて減少させ、前記入口部から投入した含水原料を圧搾脱水して前記出口部から脱水ケーキとして排出するスクリュプレスにおいて、前記スクリュ羽根の一部の縁部又は全縁部に沿って、前記濾過筒の内面を摺接する清掃部材を取り付けたことを特徴とする。 In order to achieve the above object, a screw press according to the present invention includes a screw shaft that is rotated by driving means, a screw blade that is provided in a spiral shape on the outer periphery of the screw shaft, and a cylindrical filter tube that surrounds the screw blade. Comprising an inlet portion and an outlet portion at both ends of the filter cylinder, and reducing a space surrounded by the screw shaft, the screw blade, and the filter cylinder from the inlet portion toward the outlet portion, In a screw press that squeezes and dehydrates the water-containing raw material charged from the inlet and discharges it as a dehydrated cake from the outlet, the inner surface of the filter cylinder is slidably contacted along a part or all of the edges of the screw blades. A cleaning member is attached.

本発明に係るスクリュプレスによれば、濾過筒の内側から清掃部材を摺接して常時清掃するので、この部分における濾過孔の目詰り、ケーキ膜の発生が解消され、脱水効率を高めることができる。 According to the screw press according to the present invention, since the cleaning member is slidably contacted from the inside of the filter cylinder and is constantly cleaned, clogging of the filtration hole and generation of cake film in this portion are eliminated, and the dewatering efficiency can be increased. .

本発明を図示の実施例に基づいて詳細に説明する。
図１は実施例の縦断面図であり、左右の支持台１、２にはスクリュ軸３が軸受け４、５を介して回転自在に支持されている。スクリュ軸３は等径とされ、スクリュ羽根６が出口側に向うにつれ容積が小さくなるようなピッチで、スクリュ軸３に螺旋状に巻回されている。なお、スクリュ軸３は下流側に進むにつれて太くなるテーパ状とし、スクリュ羽根６はそれに対応したピッチでスクリュ軸３に取り付けてもよい。 The present invention will be described in detail based on the embodiments shown in the drawings.
FIG. 1 is a longitudinal sectional view of the embodiment, and a screw shaft 3 is rotatably supported on left and right support bases 1 and 2 via bearings 4 and 5. The screw shaft 3 has an equal diameter, and is wound around the screw shaft 3 in a spiral manner at a pitch such that the volume decreases as the screw blade 6 moves toward the outlet side. The screw shaft 3 may have a taper shape that becomes thicker toward the downstream side, and the screw blades 6 may be attached to the screw shaft 3 at a pitch corresponding thereto.

スクリュ軸３の例えば左端側にはスプロケット７が取り付けられ、このスプロケット７は図示しない駆動モータにチェーンを介して連結されている。なお、スプロケット７を介さずに、駆動モータをスクリュ軸３に直結することもできる。 A sprocket 7 is attached to, for example, the left end side of the screw shaft 3, and this sprocket 7 is connected to a drive motor (not shown) via a chain. The drive motor can also be directly connected to the screw shaft 3 without the sprocket 7 being interposed.

スクリュ羽根６の外方には、多数の濾過孔を有する例えばパンチングメタルから成る円筒状の濾過筒８が設けられている。スクリュ羽根６の外周はこの濾過筒８の内周にほぼ接しており、濾過筒８の上流側、下流側にはそれぞれ側板９、１０が設けられ、スクリュ軸３はこれらの側板９、１０を貫通している。濾過筒８には両端部に原料の入口部１１と出口部１２が設けられていると共に、多数の補強環１３により補強され、全体は基台１４上に固定されている。 A cylindrical filter cylinder 8 made of, for example, a punching metal having a large number of filter holes is provided outside the screw blade 6. The outer periphery of the screw blade 6 is substantially in contact with the inner periphery of the filter cylinder 8, and side plates 9 and 10 are provided on the upstream side and the downstream side of the filter cylinder 8, respectively, and the screw shaft 3 connects these side plates 9 and 10. It penetrates. The filter tube 8 is provided with raw material inlet portions 11 and outlet portions 12 at both ends, and is reinforced by a number of reinforcing rings 13, and the whole is fixed on a base 14.

入口部１１側のスクリュ羽根６の例えば数ピッチ分程度の周縁に沿って、金属製や硬質合成樹脂製の線材の集合体から成るブラシ１５が固定されている。ブラシ１５はスクリュ羽根６の動きに伴って、濾過筒８の内周に沿って摺動するようにされている。なお、このブラシ１５を取り付けたスクリュ羽根６の径は他の部分の径よりもやや小さくされている。また、ブラシ１５は入口部１１側のスクリュ羽根６に対して取り付けることが好ましいが、他の個所においても、或いは数個所の縁部、又は全縁部に取り付けてもよい。 A brush 15 made of an aggregate of metal or hard synthetic resin wires is fixed along the periphery of the screw blade 6 on the inlet 11 side, for example, about several pitches. The brush 15 slides along the inner periphery of the filter cylinder 8 with the movement of the screw blade 6. Note that the diameter of the screw blade 6 to which the brush 15 is attached is slightly smaller than the diameter of other portions. The brush 15 is preferably attached to the screw blade 6 on the inlet portion 11 side, but may be attached to other portions, or to some or all of the edges.

図２に示すように、ブラシ１５は予めブラシ束１６として成形され、ボルト孔１７を有する円弧状のブラシ押さえプレート１８を用いてスクリュ羽根６の縁部に沿って並べられる。 As shown in FIG. 2, the brushes 15 are preliminarily formed as a brush bundle 16 and are arranged along the edge of the screw blade 6 using an arc-shaped brush holding plate 18 having bolt holes 17.

図３に示すように、スクリュ羽根６にはボルト孔１９が設けられており、ブラシ束１６を挟んでブラシ押さえプレート１８がボルト２０、ナットによりスクリュ羽根６に固定されている。 As shown in FIG. 3, the screw blades 6 are provided with bolt holes 19, and a brush holding plate 18 is fixed to the screw blades 6 with bolts 20 and nuts with the brush bundle 16 interposed therebetween.

脱水に際して、脱水すべき含水原料を入口部１１から濾過筒８内に投入すると、含水原料はスクリュ羽根６によって搬送される際に生ずる抵抗により機械的な脱水作用を受ける。つまり、スクリュ軸３、スクリュ羽根６、濾過筒８で囲まれた空間部の体積は、出口部１２側に進むにつれ徐々に減少されるために、原料は圧搾されて水分が分離され、分離した水分は濾過筒８の濾過孔から漏出する。このようにして、出口部１２に到達した脱水された原料は出口部１２から脱水ケーキとして排出される。 At the time of dehydration, when the water-containing raw material to be dehydrated is introduced into the filter cylinder 8 from the inlet 11, the water-containing raw material is subjected to mechanical dehydration due to the resistance generated when it is conveyed by the screw blades 6. That is, the volume of the space surrounded by the screw shaft 3, the screw blade 6, and the filter cylinder 8 is gradually reduced as it goes to the outlet 12 side, so that the raw material is compressed and the water is separated and separated. Moisture leaks from the filter hole of the filter tube 8. In this way, the dehydrated raw material that has reached the outlet portion 12 is discharged from the outlet portion 12 as a dehydrated cake.

このとき、スクリュ羽根６に取り付けたブラシ１５は、濾過筒８の内面に常時接しながら摺動するので、濾過筒８の目詰り及び清掃をすることになり、この部分における脱水が非効率化することがない。 At this time, the brush 15 attached to the screw blade 6 slides while always in contact with the inner surface of the filter cylinder 8, so that the filter cylinder 8 is clogged and cleaned, and dewatering at this portion becomes inefficient. There is nothing.

使用が進むにつれ、ブラシ１５が濾過筒８との摩耗により短かくなると、その分だけブラシ押さえプレート１８をスクリュ羽根６に対して取付位置を移動して、ボルト２０により再固定することにより調整とすればよい。 As the use progresses, the brush 15 becomes shorter due to wear with the filter tube 8, and the adjustment is made by moving the mounting position of the brush holding plate 18 relative to the screw blade 6 and re-fixing it with the bolt 20. do it.

ブラシ押さえプレート１８のスクリュ羽根６への固定は、入口部１１側面、出口部１２側面の何れでもよい。しかし、ブラシ押さえプレート１８が脱水原料によりスクリュ羽根６に押し付けられるため、スクリュ羽根６の入口部１１側の面に取り付けることが好ましく、強度的に有利である。 The brush pressing plate 18 may be fixed to the screw blade 6 on either the side surface of the inlet portion 11 or the side surface of the outlet portion 12. However, since the brush holding plate 18 is pressed against the screw blade 6 by the dehydrated raw material, it is preferably attached to the surface of the screw blade 6 on the inlet portion 11 side, which is advantageous in terms of strength.

なお、ブラシ１５の代りに、ゴム、樹脂、金属の板から成る清掃部材とすることもできる。 Instead of the brush 15, a cleaning member made of a rubber, resin, or metal plate may be used.

実施例の縦断面図である。It is a longitudinal cross-sectional view of an Example. ブラシ束とブラシ押さえプレートの正面図である。It is a front view of a brush bundle and a brush pressing plate. ブラシ押さえプレートをスクリュ羽根に固定した状態の正面図である。It is a front view of the state which fixed the brush holding plate to the screw blade | wing.

Explanation of symbols

３スクリュ軸
６スクリュ羽根
８濾過筒
１１入口部
１２出口部
１５ブラシ
１６ブラシ束
１７、１９ボルト孔
１８ブラシ押さえプレート
２０ボルト 3 Screw shaft 6 Screw blade 8 Filter cylinder 11 Inlet part 12 Outlet part 15 Brush 16 Brush bundle 17, 19 Bolt hole 18 Brush holding plate 20 Bolt

Claims

A screw shaft that is rotated by a driving means, a screw blade spirally provided on the outer periphery of the screw shaft, and a cylindrical filter tube that surrounds the screw blade, and an inlet portion and an outlet portion at both ends of the filter tube And reducing the space surrounded by the screw shaft, the screw blades and the filter cylinder from the inlet part toward the outlet part, and squeezing and dehydrating the water-containing raw material charged from the inlet part from the outlet part The screw press which discharges | emits as a dewatering cake WHEREIN: The cleaning member which attached the cleaning member which slidably contacts the inner surface of the said filter cylinder was attached along the one part edge part or all edge part of the said screw blade.

2. The screw press according to claim 1, wherein the cleaning member is a brush made of a large number of wires made of metal or hard synthetic resin.

The screw press according to claim 1 or 2, wherein the cleaning member is fixed to the screw blade using an arc-shaped brush holding plate.

The screw press according to claim 3, wherein the cleaning member is capable of adjusting an attachment position to the screw blade by the brush holding plate.