JPH0615117B2 - Sludge condensing dewatering device - Google Patents
Sludge condensing dewatering deviceInfo
- Publication number
- JPH0615117B2 JPH0615117B2 JP63304199A JP30419988A JPH0615117B2 JP H0615117 B2 JPH0615117 B2 JP H0615117B2 JP 63304199 A JP63304199 A JP 63304199A JP 30419988 A JP30419988 A JP 30419988A JP H0615117 B2 JPH0615117 B2 JP H0615117B2
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- cylindrical screen
- screw
- vertical
- discharge port
- 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 52
- 239000007788 liquid Substances 0.000 description 14
- 230000018044 dehydration Effects 0.000 description 13
- 238000006297 dehydration reaction Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000005484 gravity Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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
- B30B9/163—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 working in different chambers
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、上水、下水、各種用水、し尿、産業廃水等の
水処理において発生する汚泥を連続的に濃縮し、脱水す
る装置に関するものである。TECHNICAL FIELD The present invention relates to an apparatus for continuously concentrating and dehydrating sludge generated in water treatment of tap water, sewage, various kinds of water, night soil, industrial wastewater and the like. Is.
〔従来の技術〕 一端部に汚泥供給口を設け他端部にケーキ排出口を設け
た水平円筒スクリーン内に圧搾用スクリュー羽根を外周
に備えた水平スクリュー軸を回転可能に配備したスクリ
ュープレス型脱水機による汚泥の脱水は、圧搾力の調節
により各種性状の汚泥に対応して効果的に脱水すること
ができるものとして多用されている。[Prior Art] A screw press type dewatering in which a horizontal screw shaft equipped with squeezing screw blades on the outer periphery is rotatably arranged in a horizontal cylindrical screen having a sludge supply port at one end and a cake discharge port at the other end. Dehydration of sludge by a machine is widely used as a device capable of effectively dehydrating sludge of various properties by adjusting the pressing force.
汚泥の脱水は、通常脱水操作の前に濃縮操作を必要と
し、一般にこれらの濃縮と脱水はそれぞれ別の装置で行
われていた。Dehydration of sludge usually requires a concentration operation before the dehydration operation, and generally, the concentration and the dehydration are performed by different devices.
スクリュープレス型脱水機は、その前段部が広い意味で
の重力による濃縮機能を有しているということができる
が、多量の汚泥を濃縮したい場合には、この前段部の容
量を大きくする必要があり、そのために機械全体が非常
に大型化し、機械的に別の問題が発生する。It can be said that the screw press type dewatering machine has a concentration function by gravity in a broad sense in the front part thereof, but if it is desired to concentrate a large amount of sludge, it is necessary to increase the capacity of the front part. Therefore, the entire machine becomes very large, which causes another mechanical problem.
また、汚泥の濃縮特性は、汚泥粒子の性状以外にもその
分散・凝集特性などによっても広範囲にわたって異なっ
てくるため、効果的な脱水を行うためには、汚泥の性状
によって濃縮操作の調節が必要となる。In addition to the properties of sludge particles, the concentration characteristics of sludge vary over a wide range not only due to their dispersion / aggregation characteristics, but it is necessary to adjust the concentration operation depending on the properties of sludge in order to perform effective dehydration. Becomes
従って、スクリュープレス型脱水機とは別に汚泥濃縮装
置を設けておき、あらかじめ汚泥を所定濃度に濃縮した
のち、脱水機に供給するのが一般であり、連続性に欠
け、設置面積も多くを必要としていた。Therefore, it is common to install a sludge concentrator separately from the screw press type dewatering machine, concentrate sludge to a predetermined concentration in advance, and then supply it to the dewatering machine, which lacks continuity and requires a large installation area. I was trying.
本発明は、スクリュープレス型脱水機と汚泥濃縮装置を
一体化してコンパクトにし、しかも汚泥の性状に対応し
てその濃縮度を適宜調節可能とし、汚泥の濃縮から脱水
までを連続的かつ効果的に行うことができる汚泥濃縮脱
水装置を提供することを目的とするものである。The present invention integrates a screw press type dewatering machine and a sludge concentrating device into a compact body, and further makes it possible to appropriately adjust the degree of concentration according to the property of the sludge, and continuously and effectively from sludge concentration to dewatering. It is an object of the present invention to provide a sludge concentrating and dehydrating device that can be performed.
本発明は、一端部に汚泥供給口を設け他端部にケーキ排
出口を設けた水平円筒スクリーン内に圧搾用スクリュー
羽根を外周に備えた水平スクリュー軸を回転可能に配備
したスクリュープレス型脱水部の前記汚泥供給口に、上
部に排出口を設け下部に汚泥導入口を設け内部に上方へ
の移送用スクリュー羽根を外周に備えた垂直スクリュー
軸を回転可能に配備した垂直円筒スクリーンの前記排出
口を連接したことを特徴とする汚泥濃縮脱水装置であ
る。The present invention is a screw press type dewatering unit in which a horizontal screw shaft having a screw blade for pressing is provided rotatably in a horizontal cylindrical screen having a sludge supply port at one end and a cake discharge port at the other end. The sludge supply port is provided with a discharge port at the upper part and a sludge introduction port at the lower part, and the discharge port of a vertical cylindrical screen rotatably provided with a vertical screw shaft provided on the outer periphery with screw blades for upward transfer inside It is a sludge concentrating and dewatering device characterized by being connected to each other.
上記のように構成された本発明では、脱水すべき汚泥
は、まず垂直円筒スクリーン内の下部に汚泥導入口から
導入され、垂直スクリュー軸と共に回転する移送用スク
リュー羽根によって上方へ移送されながら重力による濃
縮が行われる。濃縮によって分離された分離液は、垂直
円筒スクリーンの周囲から外部に流出し、濃縮された汚
泥は垂直円筒スクリーン上部に至る。この時、汚泥の性
状に対応して垂直円筒スクリーン内への汚泥の導入量、
垂直スクリュー軸の回転数等を調節することによって、
所望の濃縮度の濃縮汚泥が得られる。In the present invention configured as described above, sludge to be dewatered is first introduced into the lower part of the vertical cylindrical screen through the sludge inlet, and is transferred by gravity while being transferred upward by the transfer screw blades rotating together with the vertical screw shaft. Concentration is performed. The separated liquid separated by concentration flows out from the periphery of the vertical cylindrical screen to the outside, and the concentrated sludge reaches the upper part of the vertical cylindrical screen. At this time, the amount of sludge introduced into the vertical cylindrical screen according to the sludge properties,
By adjusting the rotation speed of the vertical screw shaft,
A thickened sludge having a desired degree of enrichment is obtained.
次いで、垂直円筒スクリーン上部に至った濃縮汚泥は、
排出口からスクリュープレス型脱水機の泥供給口を経て
水平円筒スクリーン内部に至り、水平スクリュー軸と共
に回転する圧搾用スクリュー羽根により圧搾されて脱水
され、脱水ケーキとなってケーキ排出口から排出され
る。Next, the concentrated sludge that reached the top of the vertical cylindrical screen was
From the discharge port, through the mud supply port of the screw press type dehydrator, to the inside of the horizontal cylindrical screen, it is squeezed and dehydrated by the pressing screw blades that rotate together with the horizontal screw shaft, and the cake is discharged from the cake discharge port. .
本発明の一実施例を図面を参照しながら説明すれば、第
１図において、脱水部Ｄとしては、一端部に汚泥供給口
１が設けられ他端部にケーキ排出口２が設けられた水平
円筒スクリーン３内に、圧搾用スクリュー羽根４を外周
に備えた水平スクリュー軸５が図示しない駆動装置によ
り回転可能に配備されてスクリュープレス型に構成さ
れ、ケーキ排出口２にはその開口面積を調節し、ケーキ
の排出に抵抗を与え汚泥に対する圧搾力を調節しうるよ
うに水平移動可能な円錐抵抗体６が設けられ、またケー
キ排出口２はケーキ排出シュート７内に開口されてい
る。An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the dehydration section D is a horizontal one having a sludge supply port 1 at one end and a cake discharge port 2 at the other end. Inside the cylindrical screen 3, a horizontal screw shaft 5 having a pressing screw blade 4 on its outer periphery is rotatably provided by a drive device (not shown) to form a screw press type, and the opening area of the cake outlet 2 is adjusted. However, a conical resistor 6 that can move horizontally is provided so as to resist the discharge of the cake and adjust the pressing force against the sludge, and the cake discharge port 2 is opened in the cake discharge chute 7.
濃縮部Ｃとしては、上部に排出口８が設けられ下部に汚
泥導入管９が開口され、内部には導入された汚泥を上方
に移送するための移送用スクリュー羽根１０を外周に備
えた垂直スクリュー軸１１が、前記脱水部Ｄの水平スク
リュー軸５の駆動装置は別個の図示しない駆動装置によ
り回転可能に配備された垂直円筒スクリーン１２で構成
されている。なお、この垂直円筒スクリーン１２内底部
には、垂直スクリュー軸１１に固定された沈殿防止羽根
１３を配備し、垂直円筒スクリーン１２の上部には垂直
円筒スクリーン１２内の水面レベルを検出するレベル検
出器１４を設けることが好ましい。As the concentrating portion C, a vertical screw having a discharge port 8 provided at an upper portion thereof, a sludge introducing pipe 9 being opened at a lower portion thereof, and a transfer screw blade 10 for transferring the introduced sludge upward is provided inside thereof. The shaft 11 is composed of a vertical cylindrical screen 12 in which the drive unit for the horizontal screw shaft 5 of the dehydrating section D is rotatably arranged by a separate drive unit (not shown). The bottom of the vertical cylindrical screen 12 is provided with a settling prevention blade 13 fixed to the vertical screw shaft 11, and the upper part of the vertical cylindrical screen 12 is a level detector for detecting the water level in the vertical cylindrical screen 12. It is preferable to provide 14.
さらに、脱水部Ｄの汚泥供給口１と濃縮部Ｃの排出口８
とは互いに連接されており、また脱水部Ｄの水平円筒ス
クリーン３及び濃縮部Ｃの垂直円筒スクリーン１２をそ
れぞれ通過する分離液を一緒に外部へ導くべく、適宜カ
バー等でガイドされる分離液流出路１５が形成され、分
離液流出管１６に連なっている。Further, the sludge supply port 1 of the dehydration section D and the discharge port 8 of the concentration section C
Are connected to each other, and the separated liquid outflow is appropriately guided by a cover or the like so as to guide the separated liquid together passing through the horizontal cylindrical screen 3 of the dehydrating section D and the vertical cylindrical screen 12 of the concentrating section C together. A passage 15 is formed and is connected to the separated liquid outflow pipe 16.
しかして、脱水すべき汚泥は、汚泥導入管９から垂直円
筒スクリーン１２内の下部に導入され、垂直スクリュー
軸１１の回転により移送用スクリュー羽根１０と共に回
転する沈殿防止羽根１３で撹拌されながら、移送用スク
リュー羽根１０によって移送されると同時に重力によっ
て濃縮され、分離液は垂直円筒スクリーン１２の周囲か
ら分離液流出路１５を経て分離液流出管１６から外部へ
流出する。Then, the sludge to be dehydrated is introduced from the sludge introduction pipe 9 to the lower part of the vertical cylindrical screen 12 and is transferred while being stirred by the settling prevention blade 13 which is rotated together with the transfer screw blade 10 by the rotation of the vertical screw shaft 11. At the same time as being transferred by the screw blades 10 for use, it is concentrated by gravity, and the separated liquid flows out from the periphery of the vertical cylindrical screen 12 through the separated liquid outflow passage 15 to the outside through the separated liquid outflow pipe 16.
円筒スクリーンを使用した重力濃縮は、水平円筒スクリ
ーンを使用するのが一般的であり、その場合主として下
半円部において液との分離が行われ、その時の圧力は最
大でも円筒直径分の水深によるものである。これに対し
て本発明のように垂直円筒スクリーン１２による時は、
直径より深さを大にして圧力を大きくすることができ、
しかもスクリーン全面が液との分離面積に使われること
から、濃縮速度が早くなり、結果として濃縮部の容積を
小さくすることができる。For gravity concentration using a cylindrical screen, it is common to use a horizontal cylindrical screen, in which case the separation from the liquid is performed mainly in the lower semicircle, and the pressure at that time depends on the water depth of the cylinder diameter at the maximum. It is a thing. On the other hand, when using the vertical cylindrical screen 12 as in the present invention,
The depth can be made larger than the diameter to increase the pressure,
Moreover, since the entire surface of the screen is used for the separation area from the liquid, the concentration speed is increased, and as a result, the volume of the concentration part can be reduced.
本発明の濃縮部Ｃにおける濃縮は、汚泥の性状に応じて
適宜調節することができる。即ち、汚泥導入管９から導
入される汚泥量を調節し、垂直円筒スクリーン１２内の
水面レベルを変えて濃縮圧力を変えたり、垂直スクリュ
ー軸１１の回転数を調節して移送用スクリュー羽根１０
による汚泥の移送速度を変えたりするなどで行う。The concentration in the concentration section C of the present invention can be appropriately adjusted according to the properties of sludge. That is, the amount of sludge introduced from the sludge introduction pipe 9 is adjusted, the water level in the vertical cylindrical screen 12 is changed to change the concentration pressure, and the rotation speed of the vertical screw shaft 11 is adjusted to transfer screw blades 10.
This is done by changing the sludge transfer speed.
なお、移送用スクリュー羽根１０を垂直円筒スクリーン
１２内面の付着物を清掃することができるようにもして
おくことが好ましく、またレベル検出器１４は汚泥導入
量の変動を検出するためのものであるが、水面レベルの
上昇により垂直円筒スクリーンの目詰まり状態を検知す
ることもできる。It is preferable that the transfer screw blades 10 be able to clean the adhering substances on the inner surface of the vertical cylindrical screen 12, and the level detector 14 is for detecting the fluctuation of the sludge introduction amount. However, it is also possible to detect the clogging state of the vertical cylindrical screen by increasing the water level.
このように濃縮されながら垂直円筒スクリーン１２内の
上部に至った濃縮汚泥は、排出口８から脱水部Ｄの汚泥
供給口１を経て水平円筒スクリーン３に入り、濃縮部Ｃ
の垂直スクリュー軸１１より遅い回転数をもった水平ス
クリュー軸５と共に回転する圧搾用スクリュー羽根４に
て圧搾され、脱水ケーキとなってケーキ排出口２からケ
ーキ排出シュート７を経て排出される。一方、脱水によ
り分離された分離液は、水平円筒スクリーン３から分離
液流出路１５を経て分離液流出管１６から外部へ流出す
る。The concentrated sludge thus concentrated and reaching the upper part in the vertical cylindrical screen 12 enters the horizontal cylindrical screen 3 from the discharge port 8 through the sludge supply port 1 of the dewatering section D, and the concentrated section C
Is squeezed by the squeezing screw blades 4 that rotate together with the horizontal screw shaft 5 having a slower rotation speed than the vertical screw shaft 11, and becomes a dehydrated cake and is discharged from the cake discharge port 2 through the cake discharge chute 7. On the other hand, the separated liquid separated by dehydration flows out of the horizontal cylindrical screen 3 through the separated liquid outflow passage 15 and the separated liquid outflow pipe 16.
第２図は、本発明の他の実施例で、濃縮部Ｃの垂直円筒
スクリーン１２の移送用スクリュー羽根１０を備えた垂
直スクリュー軸１１を複数にしたもので、特に含水率が
高い汚泥や大容量濃縮に適しているが、これに代えて脱
水部Ｄのほうの圧搾用スクリュー羽根４を備えた水平ス
クリュー軸５を複数にしたり、濃縮部Ｃと脱水部Ｄ共に
スクリュー軸を複数にすることもできる。また、スクリ
ュー軸を複数にした時は、隣接した各軸の回転方向を互
いに逆方向にするとよい。FIG. 2 shows another embodiment of the present invention, in which a plurality of vertical screw shafts 11 provided with screw blades 10 for transfer of the vertical cylindrical screen 12 of the concentrating section C are provided, and particularly sludge or large sludge having a high water content is used. It is suitable for volumetric concentration, but instead of this, a plurality of horizontal screw shafts 5 having the pressing screw blades 4 in the dehydration section D are provided, and a plurality of screw shafts are provided for both the concentration section C and the dehydration section D. You can also Further, when the screw shafts are plural, the rotation directions of the adjacent shafts may be opposite to each other.
即ち、濃縮部Ｃの垂直スクリュー軸１１，脱水部Ｄの水
平スクリュー軸５を、それぞれ１本又は２連軸とし、あ
るいは垂直スクリュー軸１１又は水平スクリュー軸５の
どちらか一方を１本、他方を２連軸とすることができ、
２連軸の時には各回転方法を互いに逆方向にするとよ
い。That is, the vertical screw shaft 11 of the concentrating section C and the horizontal screw shaft 5 of the dehydrating section D are respectively one or two linked shafts, or one of the vertical screw shaft 11 and the horizontal screw shaft 5 is one and the other is It can be a double shaft,
In the case of two-shafts, it is advisable to rotate the respective methods in opposite directions.
以上述べたように、本発明の汚泥濃縮脱水装置は、水平
のスクリュープレス型脱水部の汚泥供給口に垂直円筒ス
クリーンからなる垂直上昇式の濃縮部の排出口を連接し
たことにより、汚泥の性状に対応してその濃縮度を脱水
に好適たらしめてそのまま脱水部に送給することがで
き、操作容易で一機種で汚泥の濃縮と脱水を連続して効
果的に行うことができ、また全体もほぼＬ字型のコンパ
クトな構造となり、設置面積も節減されるものである。As described above, the sludge concentrating and dewatering apparatus of the present invention is characterized by connecting the sludge supply port of the horizontal screw press type dewatering unit with the discharge port of the vertically rising type concentrating unit consisting of a vertical cylindrical screen. Corresponding to the above, it can be sent to the dehydration unit as it is after making its concentration suitable for dehydration, and it is easy to operate and one model can continuously and effectively perform sludge concentration and dehydration. It has an almost L-shaped compact structure and saves the installation area.
第１図は本発明の一実施例を示す一部省略縦断側面図
で、第２図は本発明の他の実施例を示す一部省略横断平
面図である。 １……汚泥供給口、２……ケーキ排出口、３……水平円
筒スクリーン、４……圧搾用スクリュー羽根、５……水
平スクリュー軸、６……円錐抵抗体、７……ケーキ排出
シュート、８……排出口、９……汚泥導入管、１０……
移送用スクリュー羽根、１１……垂直スクリュー軸、１
２……垂直円筒スクリーン、１３……沈殿防止羽根、１
４……レベル検出器、１５……分離液流出路、１６……
分離液流出管。FIG. 1 is a partially omitted vertical sectional side view showing an embodiment of the present invention, and FIG. 2 is a partially omitted transverse plan view showing another embodiment of the present invention. 1 ... Sludge supply port, 2 ... Cake discharge port, 3 ... Horizontal cylindrical screen, 4 ... Squeeze screw blade, 5 ... Horizontal screw shaft, 6 ... Cone resistor, 7 ... Cake discharge chute, 8 ... Discharge port, 9 ... Sludge introduction pipe, 10 ...
Transfer screw blades, 11 ... Vertical screw shaft, 1
2 ... Vertical cylindrical screen, 13 ... Settling prevention blade, 1
4 ... Level detector, 15 ... Separation liquid outflow passage, 16 ...
Separated liquid outflow pipe.
Claims (1)
排出口を設けた水平円筒スクリーン内に圧搾用スクリュ
ー羽根を外周に備えた水平スクリュー軸を回転可能に配
備したスクリュープレス型脱水部の前記汚泥供給口に、
上部に排出口を設け下部に汚泥導入口を設け内部に上方
への移送用スクリュー羽根を外周に備えた垂直スクリュ
ー軸を回転可能に配備した垂直円筒スクリーンの前記排
出口を連接したことを特徴とする汚泥濃縮脱水装置。1. A screw press type dewatering in which a horizontal screw shaft having squeezing screw blades on the outer periphery is rotatably arranged in a horizontal cylindrical screen having a sludge supply port at one end and a cake discharge port at the other end. Part of the sludge supply port,
It is characterized in that the discharge port of the vertical cylindrical screen rotatably provided with the vertical screw shaft provided with the discharge port at the upper part and the sludge introduction port at the lower part and provided with the upward transfer screw blades inside is connected to each other. Sludge condensing dewatering device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63304199A JPH0615117B2 (en) | 1988-12-02 | 1988-12-02 | Sludge condensing dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63304199A JPH0615117B2 (en) | 1988-12-02 | 1988-12-02 | Sludge condensing dewatering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02151397A JPH02151397A (en) | 1990-06-11 |
| JPH0615117B2 true JPH0615117B2 (en) | 1994-03-02 |
Family
ID=17930212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63304199A Expired - Lifetime JPH0615117B2 (en) | 1988-12-02 | 1988-12-02 | Sludge condensing dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615117B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585426A (en) * | 2018-05-21 | 2018-09-28 | 太仓市友联干燥粉碎设备有限公司 | A kind of river sludge drying system |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0494193U (en) * | 1991-01-11 | 1992-08-14 | ||
| JPH0498395U (en) * | 1991-01-18 | 1992-08-25 | ||
| JP2552825Y2 (en) * | 1991-08-09 | 1997-10-29 | 株式会社石垣 | Multi-layer screw press |
| JP2007029805A (en) * | 2005-07-25 | 2007-02-08 | Kurita Water Ind Ltd | Apparatus for concentrating sludge |
| JP4702358B2 (en) * | 2007-12-18 | 2011-06-15 | 株式会社石垣 | Screw press with concentration mechanism |
| JP4953089B2 (en) * | 2007-12-26 | 2012-06-13 | 株式会社石垣 | Continuous dehydration filtration equipment |
| JP4978636B2 (en) * | 2009-02-12 | 2012-07-18 | 株式会社石垣 | Concentrator |
| IT1401039B1 (en) | 2010-07-05 | 2013-07-12 | Wam Spa | AUGER SEPARATION PLANT FOR LIQUID MIXTURE TREATMENT |
| CN105776813B (en) * | 2016-05-30 | 2018-07-24 | 桑尼环保（江苏）有限公司 | Two-stage sludge dewaterer |
| CN107837567A (en) * | 2017-11-29 | 2018-03-27 | 西安工程大学 | A kind of sewage-treatment plant |
| CN113716831A (en) * | 2021-09-07 | 2021-11-30 | 广东华坤建设集团有限公司 | Sludge dewatering and fixing treatment system |
-
1988
- 1988-12-02 JP JP63304199A patent/JPH0615117B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585426A (en) * | 2018-05-21 | 2018-09-28 | 太仓市友联干燥粉碎设备有限公司 | A kind of river sludge drying system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02151397A (en) | 1990-06-11 |
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