JPS59220300A - Screw press dehydrator - Google Patents

Screw press dehydrator

Info

Publication number
JPS59220300A
JPS59220300A JP9428983A JP9428983A JPS59220300A JP S59220300 A JPS59220300 A JP S59220300A JP 9428983 A JP9428983 A JP 9428983A JP 9428983 A JP9428983 A JP 9428983A JP S59220300 A JPS59220300 A JP S59220300A
Authority
JP
Japan
Prior art keywords
screw
sludge
cake
vanes
dehydrated
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
Application number
JP9428983A
Other languages
Japanese (ja)
Other versions
JPS6161919B2 (en
Inventor
Haruo Fukui
福井　治男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to JP9428983A priority Critical patent/JPS59220300A/en
Publication of JPS59220300A publication Critical patent/JPS59220300A/en
Publication of JPS6161919B2 publication Critical patent/JPS6161919B2/ja
Granted legal-status Critical Current

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
    • B30B9/16—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 operating with two or more screws or worms
    • B30B9/166—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 operating with two or more screws or worms the screws being coaxially disposed in the same chamber

Abstract

PURPOSE:To provide a screw press dehydrator with which dehydrated cake contg. uniform and low moisture is obtd. by consisting the same of the 1st screw on a sludge feed port side which delivers sludge to a cake discharge port while dehydrating the same and the 2nd screw which is reversed in the winding and rotating direction of screw vanes. CONSTITUTION:The sludge conveyed by a screw 7 is deposited in the part where there are no vanes. The sludge is compacted by the difference in the rotating speeds of both screws 7 and 9 then the sludge is exactly filled between the screw vanes 16 and 16 of the succeeding 2nd screw 9. The winding and rotating directions of the screw vanes 15, 16 are reversed with the screws 7 and 9 and therefore the direction where the cake is transferred by the screw 7 is V1 while said direction is inverted to V2 by the screw 9. The sludge is therefore strongly forced between the vanes 16 and 16. The sludge is compacted by the above-mentioned difference in the transfer speeds in the juncture of the screw shafts 8, 10 having no vanes so that the sludge existing on the front surface of the vane 6 and the rear surface of the vane 16 is provided similarly and exactly with the compaction effect and is dehydrated. The sludge is further dehydrated by the torsional effect and strong shearing effect applied thereon by the directional change of the sludge arising when the sludge is transferred to the screw 9.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は上下水汚泥やし原汚泥等の汚泥から低水分のケ
ーキを連続的に得るためのスクリュープレス脱水機に関
するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a screw press dewatering machine for continuously obtaining a low-moisture cake from sludge such as water and sewage sludge or raw coconut sludge.

（従来技術） 胴部に多数の濾液排出孔を配設した横型の外筒内に該外
筒の一端に設けられる汚泥供給口から他端に設けられる
ケーキ排出口に向は被処理物を連続的に送シ出すスクリ
ューを設けた従来のスクリュープレス脱水機は、外筒と
スクリューとＫよって囲まれる部分の容積がケーキ排出
口に近付くに従って次第に減少するようにするとともに
、ケーキ排出口の外側に抵抗体を設けて脱水汚泥の排出
をケーキ排出口側で抑制することによってケーキ排出口
近傍の圧力を増大させたものを普通とするが、このよう
なスクリュープレス脱水機により汚泥をそのままもしく
は高分子凝集剤その他の凝集剤を添加し凝集させた凝集
汚泥として汚泥供給口から供給すると、汚泥はスクリュ
ー羽根の前側すなわち搬送方向側から順次堆積していく
から、脱水時間の経過に伴ってスクリュー羽根の直前面
側にある汚泥が裏面側にある汚泥よりも強く圧搾されて
該スクリュー羽根の直前面には低水分ケーキが形成され
るのに対し、スクリュー羽根の裏面には高水分ケーキが
形成されてそのままの状態でケーキ排出口から排出され
、得られるケーキ水分にばらつきが生じてケーキ水分の
高いものとなる。(Prior art) The material to be treated is continuously transported from a sludge supply port provided at one end of the outer cylinder to a cake discharge port provided at the other end in a horizontal outer cylinder with a large number of filtrate discharge holes arranged in the body. A conventional screw press dewatering machine equipped with a screw that pumps the cake out has a structure in which the volume of the area surrounded by the outer cylinder, screw, and K gradually decreases as it approaches the cake discharge port. Usually, a resistor is installed to suppress the discharge of dehydrated sludge on the cake discharge port side, thereby increasing the pressure near the cake discharge port. When flocculating sludge is flocculated by adding a flocculant or other flocculant and is supplied from the sludge supply port, the sludge will accumulate sequentially from the front side of the screw blades, that is, from the conveying direction side, so as the dewatering time passes, the screw blades will The sludge on the front side is squeezed more strongly than the sludge on the back side, and a low moisture cake is formed on the front side of the screw blade, whereas a high moisture cake is formed on the back side of the screw blade. The cake is discharged as it is from the cake outlet, and the cake moisture obtained varies, resulting in a cake with a high moisture content.

（発明の目的） 本発明は前記のような欠点をなくして水分が均一かつ低
水分の脱水ケーキを得ることができるスクリュープレス
脱水機を目的として完成されたものである◇ （発明の構成） 本発明の構成は胴部に多数の濾液排出口を有する外筒内
に該外筒の一端の汚泥供給口から他端のケーキ排出口に
向は被処理物を連続的に送シ出すスクリューを回転自在
に設けたスクリュープレス脱水機において、前記スクリ
ューを汚泥供給口側の第１スクリユー軸にスクリュー羽
根を巻いた第１スクリユムと該第１スクリユー軸とは逆
方向に回転されるケーキ排出口側の第２スクリユー軸に
スクリュー羽根を前記スクリュー羽根とは逆方向に巻い
た第２スクリユーとよりなるものとしたことを特徴とす
るものである。(Object of the Invention) The present invention has been completed with the aim of providing a screw press dehydrator that can eliminate the above-mentioned drawbacks and obtain a dehydrated cake with uniform and low moisture content.◇ (Structure of the Invention) The structure of the invention is that a screw is rotated to continuously feed the material to be treated from a sludge supply port at one end of the outer cylinder to a cake discharge port at the other end in an outer cylinder having a large number of filtrate discharge ports in the body. In a screw press dehydrator that is freely installed, the screw is attached to a first screw shaft on the sludge supply port side, and a first screw shaft on the cake discharge port side, which is rotated in the opposite direction to the first screw shaft. The present invention is characterized in that it comprises a second screw in which a screw blade is wound around the second screw shaft in a direction opposite to that of the screw blade.

（実施例） 次に、本発明を図示の実施例について詳細に説明すれば
、（１）はスクリュープレス脱水機本体であって、該ス
クリュープレス脱水機本体（１）はｍ液排出孔（２）を
胴部に多数配設した円筒状の外筒（３）内に該外筒の一
端に設けた汚泥供給口（４）から他端に設けたケーキ排
出口（５）に泊かつて汚泥を連続的に送り出すスクリュ
ー（６）を回転自在に設け、該外筒（３）とスクリュー
（６）とで囲まれる部分の容積がケーキ排出口（５）に
近付くに従って次第に減少するようになっている基本構
造はこの種スクリュープレス脱水機と同様であるが、前
記スクリュー（６）は汚泥供給口（４）　（ｔｉｌ＋の
第１スクリユー（７）とケーキ排出口（５）　０１１１
の第２スクリユー（９）とで構成されていて第１スクリ
ユー（７）のスクリュー軸（８）と第２′）−クリユー
（９）のスクリュー軸００はそれぞれ環状の軸受は部Ｑ
υと軸（６）とで回転自在に接続されている。第１スク
リユー（７）のスクリュー軸（８）および第２スクリユ
ー（９）のスクリュー軸０１はそれぞれスプロケット０
３、α蜀によ）別々に独立して駆動され、図中矢印Ｎｌ
、Ｎ２で示す如く回転方向が逆向きである。また、第１
スクリユー軸（８）に巻かれたスクリュー羽根αＧと第
２スクリユー軸Ｑ（］に巻かれたスクリュー羽根０Ｑは
巻き方向が逆向きであり、両スクリュー軸（８）、０（
１の接続部には羽根のない部分が％〜／ピッチ分好まし
くは％〜％ピッチ分程度設けである。さらに、前記第１
スクリユー（７）は第１スクリユー（９）よりも回転速
度が／、７〜５倍好ましくは７．２〜２倍程度高速で回
転されるようになっている。(Embodiment) Next, the present invention will be described in detail with reference to the illustrated embodiment. (1) is a screw press dehydrator main body, and the screw press dehydrator main body (1) has an m-liquid discharge hole (2 ) is arranged in the body of a cylindrical outer cylinder (3), and the sludge is transferred from the sludge supply port (4) provided at one end of the outer cylinder to the cake discharge port (5) provided at the other end. A continuously feeding screw (6) is rotatably provided, and the volume of the area surrounded by the outer cylinder (3) and the screw (6) gradually decreases as it approaches the cake discharge port (5). The basic structure is the same as this type of screw press dewatering machine, but the screw (6) is connected to the sludge supply port (4) (the first screw (7) of til+ and the cake discharge port (5).
The screw shaft (8) of the first screw (7) and the screw shaft 00 of the screw (2')-crew (9) each have an annular bearing in the section Q.
It is rotatably connected by υ and the shaft (6). The screw shaft (8) of the first screw (7) and the screw shaft 01 of the second screw (9) each have a sprocket 0.
3. α Shu) is driven separately and independently, and the arrow Nl in the figure
, N2, the rotation directions are opposite. Also, the first
The winding directions of the screw blade αG wound around the screw shaft (8) and the screw blade 0Q wound around the second screw shaft Q() are opposite, and both screw shafts (8), 0(
In the connecting portion of No. 1, the portion without blades is provided by about % to % pitch, preferably about % to % pitch. Furthermore, the first
The screw (7) is rotated at a rotation speed of about 7 to 5 times, preferably 7.2 to 2 times, than the first screw (9).

このように構成されたものは、スクリュー（６）を回転
させて凝集された汚泥を汚泥供給口（４）へ供給すると
、汚泥はスクリュー（６）により重力脱水されながら順
次ケーキ排出口（５）側に搬送される間に圧搾脱水され
、水分は外筒（３）の濾液排出孔（２）より排出されて
ケーキがケーキ排出口（５）から排出されることは在来
のこの種スクリュープレス脱水機と同様であるが、スク
リュー（６）が汚泥供給口（４）側の第１スクリユー（
７）とケーキ排出口（５）側の第２スクリユー（９）と
に分割されていて第１スクリユー（７）と第２スクリユ
ー（９）の接続部に羽根のない部分を設けであるので、
第１スクリユー（７）により搬送されてきた汚泥はこの
羽根のない部分で堆積して両スクリューの回転速度差に
よシ圧密され、効率よく脱水烙れでひねり効果の出やす
い状態まで硬化し、この堆積した汚泥は押し込み作用を
受けて次の第２スクリユー（９）のスクリュー羽根０軛
、Ｃ１６間に適確に充満されることとなる。しかも、第
１スクリユー（７）と第２スクリユー（９）とはスクリ
ュー羽根０９、αＱの巻き方向を逆方向とするとともに
回転方向を逆方向にしているので、第１スクリユー（７
）によるケーキ移送方向はＶｌであるのに対し第２スク
リユー（９）では反転されてＶ２の方向となってｍＪ記
スクリュー羽根αｅ、Ｑｔｉ間に強く汚泥は押し込まれ
、羽根のない両スクリュー軸（８）、０１の接続部で前
記したように移送速度の差により圧密きれた汚泥はスク
リュー羽根αＱの前面にあるものも後面にあるものも同
様に適確に圧密作用を受は脱水されるとともに第２スク
リユー（９）に移った際に生じる方向転換によシひね９
作用と強い剪断力を受けてさらに脱水されることとなる
もので、ケーキ排出口（５）からは各部の水分ばらつき
がなく、しかも、極めて低水分のケーキが安定して得ら
れることとなる。With this structure, when the screw (6) is rotated to supply the flocculated sludge to the sludge supply port (4), the sludge is dewatered by gravity by the screw (6) and is sequentially transferred to the cake discharge port (5). In conventional screw presses of this type, the cake is compressed and dehydrated while being conveyed to the side, the water is discharged from the filtrate discharge hole (2) of the outer cylinder (3), and the cake is discharged from the cake discharge port (5). It is similar to the dewatering machine, but the screw (6) is connected to the first screw (6) on the sludge supply port (4) side.
7) and a second screw (9) on the cake discharge port (5) side, and a bladeless part is provided at the connection between the first screw (7) and the second screw (9).
The sludge conveyed by the first screw (7) accumulates in this bladeless part and is consolidated due to the difference in rotational speed between both screws, and is efficiently dehydrated and hardened to a state where it is easy to produce a twisting effect. This accumulated sludge receives a pushing action and is appropriately filled between the screw blades 0 and C16 of the next second screw (9). Moreover, since the first screw (7) and the second screw (9) have opposite winding directions of the screw blades 09 and αQ and opposite rotation directions, the first screw (7)
), the cake transfer direction is Vl, but it is reversed in the second screw (9) to the direction of V2, and the sludge is strongly pushed between mJ screw blades αe and Qti, and both bladeless screw shafts ( 8) As mentioned above at the connection part 01, the sludge that has been consolidated due to the difference in transfer speed is similarly subjected to the appropriate consolidation action on the front and rear surfaces of the screw blade αQ, and is dehydrated. The twist 9 due to the change in direction that occurs when moving to the second screw (9)
The cake is further dehydrated under the action and strong shearing force, and a cake with extremely low moisture content is stably obtained from the cake discharge port (5) without any moisture variation in each part.

（発明の効果） 本発明は前記説明から明らかなように、外筒内に設けら
れて汚泥供給口から供給された汚泥を脱水しながらケー
キ排出口に送シ出すスクリューを汚泥供給口側の第１ス
クリユーと該第１スクリユーとはスクリュー羽根の巻き
方向と回転方向をいずれも逆にした第２スクリユーとよ
りなるものとしたので、第２スクリユーのスクリュー羽
根間に汚泥が適確に充満されることとなって搬送効率お
よび脱水効率が高められるうえにケーキの含有水分を低
下できるもので、在来のこの種スクリュープレス脱水機
の間顆点を解決したものとして業界の発展に寄与すると
ころ極めて大なものである。(Effects of the Invention) As is clear from the above description, the present invention has a screw provided in the outer cylinder that dehydrates the sludge supplied from the sludge supply port and sends it to the cake discharge port. Since the first screw is composed of a second screw in which the winding direction and rotation direction of the screw blades are both reversed, the space between the screw blades of the second screw is appropriately filled with sludge. As a result, the conveyance efficiency and dewatering efficiency can be increased, and the moisture content of the cake can be reduced.As a solution to the problem of conventional screw press dehydrators, it will greatly contribute to the development of the industry. It's a big thing.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の毛≠古実施例を示す一部切欠正面図であ
る。 （２）：濾液排出孔、（３）：外筒、（４）：汚泥供給
口、（５）：ケーキ排出口、（６）ニスクリユー、（７
）：第１スクリユー、（８）：第１スクリユー軸、（９
）：第２スクリユー、Ｑｌ：第、２スクリユー軸、０９
ニスクリユ一羽根、ａＱニスクリユー羽根０The drawing is a partially cut-away front view showing an old embodiment of the present invention. (2): Filtrate discharge hole, (3): Outer cylinder, (4): Sludge supply port, (5): Cake discharge port, (6) Varnish crevice, (7
): 1st screw, (8): 1st screw shaft, (9
): 2nd screw, Ql: 2nd screw axis, 09
1 Niscriu feather, aQ Niscriuu feather 0

Claims (1)

【特許請求の範囲】 ハ胴部に多数の濾液排出孔を有す層外筒内に該外筒の一
端の汚泥供給口から他端のケーキ排出口に向は被処理物
を連続的に送シ呂すスクリューを回転自在に設けたスク
リュープレス脱水機において、前記スクリューを汚泥供
給口側の第７スクリユー軸にスクリュー羽根を巻いた第
１スクリユーと該第１スクリユー軸とは逆方向に回転さ
れるケーキ排出口側の第２スクリユー軸にスクリュー羽
根を前記スクリュー羽根とは逆方向に巻いた第２スクリ
ユーとよりするものとしたことを特徴とするスクリュー
プレス脱水機。 ！、第１スクリユーを第２スクリユーより高速で回転す
るものとした特許請求の範囲第１項記載のスクリュープ
レス脱水機。[Claims] C. The material to be treated is continuously fed into a layered outer cylinder having a large number of filtrate discharge holes in the body from a sludge supply port at one end of the outer cylinder to a cake discharge port at the other end. In a screw press dehydrator equipped with a rotatable screw, the first screw has a screw blade wound around the seventh screw shaft on the sludge supply port side, and the first screw rotates in the opposite direction. A screw press dehydrator characterized in that a second screw having a screw blade wound in a direction opposite to that of the screw blade is arranged around a second screw shaft on the side of a cake discharge port. ! The screw press dehydrator according to claim 1, wherein the first screw rotates at a higher speed than the second screw.
JP9428983A 1983-05-27 1983-05-27 Screw press dehydrator Granted JPS59220300A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9428983A JPS59220300A (en) 1983-05-27 1983-05-27 Screw press dehydrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9428983A JPS59220300A (en) 1983-05-27 1983-05-27 Screw press dehydrator

Publications (2)

Publication Number Publication Date
JPS59220300A true JPS59220300A (en) 1984-12-11
JPS6161919B2 JPS6161919B2 (en) 1986-12-27

Family

ID=14106100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9428983A Granted JPS59220300A (en) 1983-05-27 1983-05-27 Screw press dehydrator

Country Status (1)

Country Link
JP (1) JPS59220300A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017001022A (en) * 2015-06-05 2017-01-05 エーアールケー カンパニー リミテッドＡｒｋ Ｃｏ．，Ｌｔｄ． Sludge dehydrator equipped with main-axis screw conveyer section and non-axis screw conveyer section

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62151829U (en) * 1986-03-18 1987-09-26
CN109016607A (en) * 2018-07-12 2018-12-18 凤台县兴永食用油有限责任公司 A kind of low temperature rape oil-pressing equipment
CN109648214A (en) * 2019-01-25 2019-04-19 广州市银宝山新汽车零部件有限公司 Processing unit (plant) and processing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865148A (en) * 1981-10-13 1983-04-18 オリンパス光学工業株式会社 Ultrasonic diagnostic apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865148A (en) * 1981-10-13 1983-04-18 オリンパス光学工業株式会社 Ultrasonic diagnostic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017001022A (en) * 2015-06-05 2017-01-05 エーアールケー カンパニー リミテッドＡｒｋ Ｃｏ．，Ｌｔｄ． Sludge dehydrator equipped with main-axis screw conveyer section and non-axis screw conveyer section

Also Published As

Publication number Publication date
JPS6161919B2 (en) 1986-12-27

Similar Documents

Publication Publication Date Title
US7357074B2 (en) Compression screw with combination single and double flights
WO1993005953A1 (en) Screw press
KR101187322B1 (en) Screwpress and method for dehydrating rotatable in positive or reverse direction
JPS5815235B2 (en) Renzokuatsusakuki
CN103712421A (en) Variable-diameter single-screw-shaft dehydrating device
US3235087A (en) Apparatus for separation of liquids from solids
JPS59220300A (en) Screw press dehydrator
KR101056798B1 (en) Screw press having pressuring protrution part in low pressing part
CN214821134U (en) Squeezer for refining peony oil
CN207891639U (en) A kind of quick process units of toilet paper
CN106758462A (en) Acroll press washer main shaft
JPS59191593A (en) Screw press type dehydrator
CN102583946B (en) Efficient laminated sludge dehydrator
JPH028637Y2 (en)
US3460466A (en) Press structure
CN206359411U (en) Sludge quantitatively supplies mud device
JP2009136919A (en) Sludge dehydrator
CN108755226B (en) Papermaking process
CN206545130U (en) Acroll press washer main shaft
CN216170203U (en) Centrifugal feeding device for filter press
CN215939581U (en) PAM medicine soaking machine with anti-blocking function
CN216273708U (en) Belt type concentration and dehydration integrated machine
KR20140100747A (en) Dewatering machine
JPS6025357Y2 (en) Solid-liquid separator
CN203629209U (en) Reducing single-spiral shaft wringing machine