JPH0615116B2 - Sludge treatment equipment - Google Patents
Sludge treatment equipmentInfo
- Publication number
- JPH0615116B2 JPH0615116B2 JP2238985A JP23898590A JPH0615116B2 JP H0615116 B2 JPH0615116 B2 JP H0615116B2 JP 2238985 A JP2238985 A JP 2238985A JP 23898590 A JP23898590 A JP 23898590A JP H0615116 B2 JPH0615116 B2 JP H0615116B2
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- section
- wall
- concentrating
- tempering
- 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 - Lifetime
Links
- 239000010802 sludge Substances 0.000 title claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000018044 dehydration Effects 0.000 claims description 9
- 238000006297 dehydration reaction Methods 0.000 claims description 9
- 238000005496 tempering Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000007670 refining Methods 0.000 description 10
- 208000005156 Dehydration Diseases 0.000 description 8
- 230000003750 conditioning effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 239000010800 human waste Substances 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (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，し尿，用廃水等の水処理過程で発生
する汚泥を連続的に脱水処理する装置に関するものであ
る。TECHNICAL FIELD The present invention relates to an apparatus for continuously dehydrating sludge generated in a water treatment process such as sewage, human waste, and waste water.
従来、通常の汚泥処理は、重力濃縮装置等で汚泥を濃縮
して減容化をはかり、濃縮した汚泥を調質槽で薬品を加
えて調質した後、脱水機で脱水するものであった。従っ
て、設備としては濃縮設備，調質槽，脱水機等を必要と
していた。Conventionally, the usual sludge treatment has been to reduce the volume by concentrating the sludge with a gravity concentrator or the like, adding chemicals to the concentrated sludge in a conditioning tank, and then dehydrating it with a dehydrator. . Therefore, as a facility, a concentration facility, a tempering tank, a dehydrator, etc. were required.
ところで、最近の傾向として、汚泥自体の濃縮性が悪化
し、重力濃縮装置からの排泥濃度が低下しており、脱水
機への負荷が増大している。さらに、重力濃縮装置は、
滞留時間の関係上かなりの敷地を必要とする。By the way, as a recent tendency, the concentration property of sludge itself is deteriorated, the concentration of sludge discharged from the gravity concentration device is decreased, and the load on the dehydrator is increased. In addition, the gravity concentrator
A considerable site is required due to the residence time.
本発明は、上記問題点を解決し、汚泥の調質，濃縮，脱
水を一つの装置で連続して効果的に行うことができるコ
ンパクトな汚泥処理装置を提供することを課題としてい
る。An object of the present invention is to solve the above-mentioned problems and to provide a compact sludge treatment device capable of continuously and effectively performing sludge conditioning, concentration, and dewatering with one device.
本発明は、一端部に汚泥供給部、他端部に脱水ケーキ排
出部を備えた横型円筒状の本体内に溢流壁を設け、該溢
流壁より前記汚泥供給部側を調質部とし、溢流壁の調質
部とは反対側の一部を濃縮部とすると共に濃縮部の外壁
の少なくとも下方部をスクリーン壁とし、該濃縮部から
前記脱水ケーキ排出部までを圧搾脱水部とし、本体の軸
方向に回転軸を回転自在に貫通し、該回転軸の前記調質
部の部分に攪拌羽根を固定すると共に回転軸の前記濃縮
部から圧搾脱水部にわたる部分に汚泥移送用のスクリュ
ー羽根を固定し、さらに前記濃縮部のスクリーン壁下部
を分離水受槽内に浸漬したことを特徴とする汚泥処理装
置である。The present invention provides an overflow wall in a horizontal cylindrical main body having a sludge supply section at one end and a dehydrated cake discharge section at the other end, and the sludge supply section side of the overflow wall is used as a tempering section. , A part of the overflow wall opposite to the tempering part is a concentrating part, and at least a lower part of the outer wall of the concentrating part is a screen wall, and the dewatering cake discharging part from the concentrating part is a pressing dehydration part, A screw blade for sludge transfer is rotatably pierced in the axial direction of the main body, a stirring blade is fixed to the portion of the refining portion of the rotating shaft, and a portion of the rotating shaft extending from the concentrating portion to the pressing dehydration portion is sludge. Is fixed, and further, the lower part of the screen wall of the concentrating part is immersed in the separation water receiving tank.
本発明の汚泥処理装置では、処理すべき汚泥を汚泥供給
部から調質部に供給し、溢流壁によって調質部に滞留し
ている汚泥に、あらかじめ加えられているか、あるいは
調質部で加えられたポリマー等の薬品が、一定の回転数
で回転する回転軸と共に回転する攪拌羽根によって攪拌
混合され、汚泥が調質される。In the sludge treatment device of the present invention, the sludge to be treated is supplied from the sludge supply section to the refining section and added to the sludge accumulated in the refining section by the overflow wall in advance or at the refining section. The added chemicals such as polymer are agitated and mixed by an agitating blade that rotates together with a rotating shaft that rotates at a constant rotation speed, and the sludge is conditioned.
調質部で調質された汚泥は、さらに調質部に供給される
汚泥量に応じて、溢流壁をオーバーフローして濃縮部に
移動する。濃縮部においては、外壁の少なくとも下方部
がスクリーン壁となっており、かつスクリーン壁下部が
分離水受槽内の分離水中に浸漬されており、分離水をオ
ーバーフローさせて分離水受槽内の水位を一定に保って
おき、スクリーン壁内外の圧力差を小さくし、低差圧で
固液分離が行われる。一方、スクリーン壁内部に残留し
た濃縮汚泥は、回転軸と共に回転するスクリーン羽根に
よって次第に圧搾脱水部側に掻き取られ、常にスクリー
ン壁はクリーンな状態に保たれる。The sludge conditioned in the refining section overflows the overflow wall and moves to the concentrating section in accordance with the amount of sludge supplied to the refining section. In the concentrating part, at least the lower part of the outer wall is the screen wall, and the lower part of the screen wall is immersed in the separated water in the separated water receiving tank, causing the separated water to overflow and the water level in the separated water receiving tank. Is kept constant, the pressure difference between the inside and outside of the screen wall is reduced, and solid-liquid separation is performed at a low pressure difference. On the other hand, the concentrated sludge remaining inside the screen wall is gradually scraped off toward the squeezing and dehydrating section by the screen blade rotating with the rotary shaft, and the screen wall is always kept clean.
濃縮部内でスクリュー羽根によって掻き取られた濃縮汚
泥は、次第に圧搾脱水部に移送されながら圧密され、脱
水されて脱水ケーキとなって脱水ケーキ排出部から排出
される。The concentrated sludge scraped off by the screw blades in the concentration section is gradually transferred to the compression dehydration section, is consolidated, is dehydrated and becomes a dehydrated cake, and is discharged from the dehydrated cake discharge section.
本発明の一実施例を第１図を参照しながら説明すると、
１は横型円筒状の本体であって、一端部に汚泥供給管２
が開口し、他端部には脱水ケーキ排出口３が開口してい
る。An embodiment of the present invention will be described with reference to FIG.
Reference numeral 1 is a horizontal cylindrical main body, and a sludge supply pipe 2 is provided at one end thereof.
Is opened, and the dehydrated cake discharge port 3 is opened at the other end.
本体１内部の汚泥供給管２の開口部付近には溢流壁４が
設けられ、この溢流壁４より汚泥供給管２側を調質部Ａ
としてある。また、溢流壁４の調質部Ａとは反対側の一
部を濃縮部Ｂとし、調質部Ａ内の汚泥が溢流壁４をオー
バーフローして濃縮部Ｂに移動するようになっており、
濃縮部Ｂの外壁はスクリーン壁５となっているが、必ず
しも全周をスクリーン壁５にすることなく、少なくとも
下方部をスクリーン壁５にしておく。濃縮部Ｂは、後述
する圧搾脱水部Ｃに至るにつれて、図示例のように、内
径が次第に縮小する如き形状が好ましく、濃縮部Ｂの終
端部付近から脱水ケーキ排出口３にわたる部分を周囲を
スクリーン壁で囲まれた圧搾脱水部Ｃとしてある。An overflow wall 4 is provided near the opening of the sludge supply pipe 2 inside the main body 1, and the sludge supply pipe 2 side of the overflow wall 4 is subjected to a tempering section A.
There is. Further, a part of the overflow wall 4 on the side opposite to the refining section A is set as a concentrating section B, and sludge in the refining section A overflows the overflow wall 4 and moves to the concentrating section B. Cage,
The outer wall of the concentrated portion B is the screen wall 5, but the entire circumference is not necessarily the screen wall 5, but at least the lower part is the screen wall 5. The concentrating section B preferably has a shape such that the inner diameter thereof gradually decreases toward the pressing dehydration section C, which will be described later, and the portion around the end of the concentrating section B to the dehydrated cake discharge port 3 is screened around. It is a compression dehydration section C surrounded by a wall.
また、本体１内には軸方向に回転軸６が回転自在に貫通
され、図示しない駆動装置によって、好ましくは１〜５
０rpmで回転されるようになっている。また、回転軸６
の調質部Ａの部分には攪拌羽根７が固定され、回転軸６
の回転によって汚泥に添加された薬品が攪拌混合される
ようになっており、回転軸６の濃縮部Ｂから圧搾脱水部
Ｃの一部にわたる部分には、汚泥移送用のスクリュー羽
根８が固定されている。なお、圧搾脱水部Ｃの脱水ケー
キ排出口３の近くは、スクリュー羽根８が無い汚泥の圧
密部分９となっている。Further, a rotary shaft 6 is rotatably pierced in the main body 1 in the axial direction, and is preferably 1 to 5 by a drive device (not shown).
It is designed to rotate at 0 rpm. Also, the rotating shaft 6
The stirring blade 7 is fixed to the refining portion A of the rotary shaft 6
The chemical added to the sludge is agitated and mixed by the rotation of the sludge, and a screw blade 8 for sludge transfer is fixed to a part of the rotary shaft 6 extending from the concentrating section B to a part of the squeezing dehydration section C. ing. In the vicinity of the dewatering cake discharge port 3 of the pressing / dehydrating section C, there is a consolidating portion 9 of sludge having no screw blade 8.
さらに、本体１の濃縮部Ｂのスクリーン壁５の下部を分
離水受槽１０内の分離水中に浸漬し、分離水の一定水位
以上の分はオーバーフローされ、スクリーン壁５内外の
低差圧で固液分離が行われて汚泥が濃縮されるようにな
っている。Furthermore, the lower part of the screen wall 5 of the concentrating section B of the main body 1 is immersed in the separated water in the separated water receiving tank 10, and the part of the separated water above a certain water level is overflowed, so that the solid liquid becomes liquid at a low differential pressure inside and outside the screen wall 5. Separation is performed and sludge is concentrated.
次に本発明の実験例を示す。Next, an experimental example of the present invention will be shown.
装置の大きさの概略は、第１図中に数値（単位mm）で示
した。この装置に対象汚泥として、濃縮８g/のし尿余
剰汚泥を0.4m3/h供給し、脱水処理したところ、濃縮部
Ｂの出口で110g/まで濃縮され、最終的に排出された
脱水ケーキの含水率は82.3％となった。The outline of the size of the device is shown by a numerical value (unit: mm) in FIG. Concentrated 8 g / human waste surplus sludge of 0.4 m 3 / h was supplied to this device as a target sludge and dehydration treatment was carried out. The water content of the dehydrated cake that was concentrated to 110 g / at the outlet of the concentration section B and finally discharged The rate was 82.3%.
なお、対象汚泥にカチオンポリマーを１．２％（ＤＳに
対して）の添加率で添加し、回転軸６の回転数を30rpm
に設定した。また、調質部Ａにおける汚泥の滞留時間は
約３０秒であった。The target sludge was added with a cationic polymer at an addition rate of 1.2% (relative to DS), and the rotation speed of the rotary shaft 6 was 30 rpm.
Set to. The sludge retention time in the tempering section A was about 30 seconds.
以上述べたように本発明によれば、汚泥の調質，濃縮，
脱水を一つの装置で連続して効果的に行うことができ、
従来別個に設けられていた濃縮設備，調質槽等を不要と
し、汚泥処理設備をきわめてコンパクト化することがで
きる。As described above, according to the present invention, sludge conditioning, concentration,
Dehydration can be effectively performed continuously with one device,
Sludge treatment equipment can be made extremely compact by eliminating the need for a separate concentration equipment, conditioning tank, etc.
第１図は本発明の一実施例を示す縦断面図である。 １……本体、２……汚泥供給管、３……脱水ケーキ排出
口、４……溢流壁、５……スクリーン壁、６……回転
軸、７……攪拌羽根、８……スクリュー羽根、９……圧
密部分、１０……分離水受槽、Ａ……調質部、Ｂ……濃
縮部、Ｃ……圧搾脱水部。FIG. 1 is a vertical sectional view showing an embodiment of the present invention. 1 ... Main body, 2 ... Sludge supply pipe, 3 ... Dewatered cake discharge port, 4 ... Overflow wall, 5 ... Screen wall, 6 ... Rotating shaft, 7 ... Agitation blade, 8 ... Screw blade , 9 ... Consolidation part, 10 ... Separation water receiving tank, A ... Refining part, B ... Concentration part, C ... Squeeze dewatering part.
Claims (1)
排出部を備えた横型円筒状の本体内に溢流壁を設け、該
溢流壁より前記汚泥供給部側を調質部とし、溢流壁の調
質部とは反対側の一部を濃縮部とすると共に濃縮部の外
壁の少なくとも下方部をスクリーン壁とし、該濃縮部か
ら前記脱水ケーキ排出部までを圧搾脱水部とし、本体の
軸方向に回転軸を回転自在に貫通し、該回転軸の前記調
質部の部分に攪拌羽根を固定すると共に回転軸の前記濃
縮部から圧搾脱水部にわたる部分に汚泥移送用のスクリ
ュー羽根を固定し、さらに前記濃縮部のスクリーン壁下
部を分離水受槽内に浸漬したことを特徴とする汚泥処理
装置。1. An overflow wall is provided in a horizontal cylindrical main body having a sludge supply section at one end and a dehydrated cake discharge section at the other end, and the sludge supply section side of the overflow wall is a tempering section. The part of the overflow wall opposite to the tempering part is a concentrating part, and at least the lower part of the outer wall of the concentrating part is a screen wall, and the condensing dewatering part from the condensing part to the dehydrated cake discharging part is a dewatering part. , A screw for rotatably penetrating the rotary shaft in the axial direction of the main body, fixing a stirring blade to the part of the rotary shaft at the tempering part, and transferring sludge to the part of the rotary shaft extending from the concentrating part to the pressing dehydration part. A sludge treatment device characterized in that the blades are fixed, and the lower part of the screen wall of the concentrating part is immersed in a separation water receiving tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2238985A JPH0615116B2 (en) | 1990-09-11 | 1990-09-11 | Sludge treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2238985A JPH0615116B2 (en) | 1990-09-11 | 1990-09-11 | Sludge treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04123895A JPH04123895A (en) | 1992-04-23 |
| JPH0615116B2 true JPH0615116B2 (en) | 1994-03-02 |
Family
ID=17038215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2238985A Expired - Lifetime JPH0615116B2 (en) | 1990-09-11 | 1990-09-11 | Sludge treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615116B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100770142B1 (en) * | 2006-12-15 | 2007-10-24 | 한국수자원공사 | Sludge Transfer Stirring Device for Water Treatment |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4953096B2 (en) * | 2008-06-10 | 2012-06-13 | 株式会社石垣 | Screw press with agglomeration device |
| JP4953098B2 (en) * | 2008-06-19 | 2012-06-13 | 株式会社石垣 | Screw press with agglomeration device |
| JP4953099B2 (en) * | 2008-06-23 | 2012-06-13 | 株式会社石垣 | Screw press with agglomeration device |
| AT12606U1 (en) * | 2011-05-20 | 2012-08-15 | Applied Chemicals Handels Gmbh | SCREW PRESS |
-
1990
- 1990-09-11 JP JP2238985A patent/JPH0615116B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100770142B1 (en) * | 2006-12-15 | 2007-10-24 | 한국수자원공사 | Sludge Transfer Stirring Device for Water Treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04123895A (en) | 1992-04-23 |
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