JPS6161919B2 - - Google Patents
Info
- Publication number
- JPS6161919B2 JPS6161919B2 JP58094289A JP9428983A JPS6161919B2 JP S6161919 B2 JPS6161919 B2 JP S6161919B2 JP 58094289 A JP58094289 A JP 58094289A JP 9428983 A JP9428983 A JP 9428983A JP S6161919 B2 JPS6161919 B2 JP S6161919B2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- sludge
- cake
- discharge port
- outer cylinder
- 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.)
- Expired
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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尿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ユープ
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 dehydrator for continuously obtaining a low moisture cake from sludge such as water and sewage sludge or human waste 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け被処理物を連
続的に送り出すスクリユーを設けた従来のスクリ
ユープレス脱水機は、外筒とスクリユーとによつ
て囲まれる部分の容積がケーキ排出口に近付くに
従つ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つてケーキ
排出口近傍の圧力を増大させたものを普通とする
が、このようなスクリユ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、汚泥はスクリユー羽根の前側す
なわち搬送方向側から順次堆積していくから、脱
水時間の経過に伴つてスクリユー羽根の直前面側
にある汚泥が裏面側にある汚泥よりも強く圧搾さ
れて該スクリユ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、スクリユー羽根の裏面に
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 dehydrator equipped with a screw that sends the cake to the outside of the cake discharge port has a structure in which the volume of the area surrounded by the outer cylinder and the screw gradually decreases as it approaches the cake discharge port. Normally, the pressure near the cake discharge port is increased by installing a resistor on the cake discharge port side to suppress the discharge of dewatered sludge. If the sludge is supplied from the sludge supply port as flocculated sludge, either as it is or flocculated by adding a polymer flocculant or other flocculant, the sludge will accumulate sequentially from the front side of the screw blades, that is, from the conveying direction side, and as the dewatering time elapses. As a result, the sludge on the front side of the screw blade 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. is formed and discharged as it is from the cake discharge port, resulting in variations in the moisture content of the resulting cake, 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
クリユープレス脱水機を目的として完成されたも
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.
（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
ケーキ排出口に向け被処理物を連続的に送り出す
スクリユーを回転自在に設けたスクリユープレス
脱水機において、前記スクリユーを汚泥供給口側
の第１スクリユー軸にスクリユー羽根を巻いた第
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
スクリユー羽根を前記スクリユー羽根とは逆方向
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。(Structure of the Invention) The structure of the present invention is to continuously feed the material to be treated from the sludge supply port at one end of the outer cylinder to the cake discharge port at the other end into an outer cylinder having a large number of filtrate discharge ports in the body. In a screw press dewatering machine in which a screw is rotatably provided, the screw is rotated in the opposite direction to the first screw in which a screw blade is wound around the first screw shaft on the sludge supply port side, and the first screw shaft is rotated in the opposite direction. This device is characterized by a second screw having screw blades wound around the second screw shaft on the discharge port side in the opposite direction to the screw blades.
（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はスクリユープレス脱水機本体であ
つて、該スクリユープレス脱水機本体１は濾液排
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に向かつて汚泥を連続的に送
り出すスクリユー６を回転自在に設け、該外筒３
とスクリユー６とで囲まれる部分の容積がケーキ
排出口５に近付くに従つて次第に減少するように
なつている基本構造はこの種スクリユープレス脱
水機と同様であるが、前記スクリユー６は汚泥供
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とで構成されていて第１スク
リユー７のスクリユー軸８と第２スクリユー９の
スクリユー軸１０はそれぞれ環状の軸受け部１１
と軸１２とで回転自在に接続されている。第１ス
クリユー７のスクリユー軸８および第２スクリユ
ー９のスクリユー軸１０はそれぞれスプロケツト
１３，１４により別々に独立して駆動され、図中
矢印N1，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
ユー羽根１５と第２スクリユー軸１０に巻かれた
スクリユー羽根１６は巻き方向が逆向きであり、
両スクリユー軸８，１０の接続部には羽根のない
部分が1/4〜１ピツチ分好ましくは1/4〜1/2ピツ
チ分程度設けてある。さらに、前記第１スクリユ
ー７は第２スクリユー９よりも回転速度が1.1〜
５倍好ましくは1.2〜２倍程度高速で回転される
ようになつている。(Example) Next, the present invention will be described in detail with reference to the illustrated embodiment. Reference numeral 1 denotes a screw press dehydrator main body, and the screw press dehydrator main body 1 has a filtrate discharge hole 2 in the body. A screw 6 is rotatably provided in a plurality of cylindrical outer cylinders 3 for continuously feeding sludge from a sludge supply port 4 provided at one end of the outer cylinder toward a cake discharge port 5 provided at the other end. , the outer cylinder 3
The basic structure is similar to this type of screw press dewatering machine, in which the volume of the area surrounded by the screw 6 and the screw 6 gradually decreases as it approaches the cake discharge port 5, but the screw 6 is used for supplying sludge. The screw shaft 8 of the first screw 7 and the screw shaft 10 of the second screw 9 each have an annular bearing portion 11.
and a shaft 12, which are rotatably connected to each other. The screw shaft 8 of the first screw 7 and the screw shaft 10 of the second screw 9 are driven separately and independently by sprockets 13 and 14, respectively, and their rotation directions are opposite as shown by arrows N 1 and N 2 in the figure. . Further, the screw blades 15 wound around the first screw shaft 8 and the screw blades 16 wound around the second screw shaft 10 are wound in opposite directions,
At the connecting portion of both screw shafts 8 and 10, a portion without blades is provided for about 1/4 to 1 pitch, preferably 1/4 to 1/2 pitch. Furthermore, the first screw 7 has a rotational speed of 1.1 to 1.1% higher than that of the second screw 9.
It is designed to rotate at a speed of about 5 times, preferably 1.2 to 2 times.
このように構成されたものは、スクリユー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、汚泥はスクリユー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ユープレス脱水機と同
様であるが、スクリユー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
てあるので、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
リユーの回転速度差により圧密され、効率よく脱
水されて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のスクリユー羽根１６，１６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とはスクリユー羽根
１５，１６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V1であるのに対し第
２スクリユー９では反転されてV2の方向となつ
て前記スクリユー羽根１６，１６間に強く汚泥は
押し込まれ、羽根のない両スクリユー軸８，１０
の接続部で前記したように移送速度の差により圧
密された汚泥はスクリユー羽根１６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
受け脱水されるとともに第２スクリユー９に移つ
た際に生じる方向転換によりひねり作用と強い剪
断力を受けてさらに脱水されることとなもので、
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 dehydrated by gravity by the screw 6 and is compressed while being sequentially conveyed to the cake discharge port 5. The water is dehydrated and 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, which is similar to the conventional screw press dehydrator of this type, but the screw 6 is used to supply sludge. It is divided into a first screw 7 on the side of the mouth 4 and a second screw 9 on the side of the cake discharge port 5, and a bladeless part is provided at the connection part of the first screw 7 and the second screw 9. The sludge conveyed by the screw 7 accumulates in this bladeless part, is consolidated by the difference in rotational speed between both screws, is efficiently dehydrated, and hardens 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 16, 16 of the next second screw 9. Moreover, since the screw blades 15 and 16 of the first screw 7 and the second screw 9 are wound in opposite directions and rotated in opposite directions, the cake transfer direction by the first screw 7 is V 1 On the other hand, in the second screw 9, the sludge is reversed in the direction of V2 , and the sludge is strongly pushed between the screw blades 16, 16, and both screw shafts 8, 10 without blades.
As mentioned above, the sludge consolidated due to the difference in transfer speed at the connection part of the screw blades 16 is equally properly consolidated and dehydrated, and transferred to the second screw 9. Due to the change in direction that occurs when the material is moved, it is subjected to twisting action and strong shearing force, resulting in further dehydration.
From the cake discharge port 5, there is no variation in moisture content in each part, and a cake with extremely low moisture content can be stably obtained.
（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り出すスクリユーを
汚泥供給口側の第１スクリユーと該第１スクリユ
ーとはスクリユ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ユー羽根間に
汚泥が適確に充満されることとなつて搬送効率お
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ユー
プレス脱水機の問題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 first screw on the sludge supply port side that is provided in the outer cylinder and sends the sludge supplied from the sludge supply port to the cake discharge port while dewatering the sludge. Since the first screw is composed of a second screw in which both the winding direction and the rotating direction of the screw blades are reversed, the spaces between the screw blades of the second screw can be properly 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 it solves the problems of conventional screw press dehydrators of this type, it will greatly contribute to the development of the industry. It is something.
図面は本発明の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：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、１０：第２スクリユー軸、１５：スクリ
ユー羽根、１６：スクリユー羽根。
The drawing is a partially cutaway front view showing an embodiment of the present invention. 2: Filtrate discharge hole, 3: Outer cylinder, 4: Sludge supply port,
5: Cake discharge port, 6: Screw, 7: First screw, 8: First screw shaft, 9: Second screw, 10: Second screw shaft, 15: Screw blade, 16: Screw blade.
Claims (1)
外筒の一端の汚泥供給口から他端のケーキ排出口
に向け被処理物を連続的に送り出すスクリユーを
回転自在に設けたスクリユープレス脱水機におい
て、前記スクリユーを汚泥供給口側の第１スクリ
ユー軸にスクリユー羽根を巻いた第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ユー羽
根を前記スクリユ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
るスクリユープレス脱水機。 ２ 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
スクリユープレス脱水機。[Claims] 1. A screw is rotated in an outer cylinder having a large number of filtrate discharge holes in its body, which continuously sends out 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 a screw press dewatering machine that is freely installed, the screw is attached to the first screw shaft on the sludge supply port side, and the first screw has a screw blade wound around the first screw shaft, and the first screw shaft is rotated in the opposite direction to the cake discharge port side. A second screw blade is wound around a second screw shaft in a direction opposite to that of the screw blade.
A screw press dewatering machine characterized by comprising a screw. 2. The screw press dehydrator according to claim 1, wherein the first screw rotates at a higher speed than the second screw.
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 JPS59220300A (en) | 1984-12-11 |
| JPS6161919B2 true 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 (3)
| 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 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160143520A (en) * | 2015-06-05 | 2016-12-14 | (주)에이알케이 | Sludge dehydrator equipped with main-axis screw conveyer section and non-axis screw conveyer section |
Family Cites Families (1)
| 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 |
-
1983
- 1983-05-27 JP JP9428983A patent/JPS59220300A/en active Granted
Cited By (3)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59220300A (en) | 1984-12-11 |
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