JPS61262498A - High-pressure dehydration treatment device - Google Patents

High-pressure dehydration treatment device

Info

Publication number
JPS61262498A
JPS61262498A JP60103918A JP10391885A JPS61262498A JP S61262498 A JPS61262498 A JP S61262498A JP 60103918 A JP60103918 A JP 60103918A JP 10391885 A JP10391885 A JP 10391885A JP S61262498 A JPS61262498 A JP S61262498A
Authority
JP
Japan
Prior art keywords
sludge
pressure
pressure dehydration
dehydration
belt
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.)
Pending
Application number
JP60103918A
Other languages
Japanese (ja)
Inventor
Takao Ikehata
池幡 隆夫
Masaaki Ito
公明 伊藤
Ichiro Sato
一郎 佐藤
Yoji Ogaki
陽二 大垣
Toshiaki Tsubone
俊明 局
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP60103918A priority Critical patent/JPS61262498A/en
Publication of JPS61262498A publication Critical patent/JPS61262498A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B9/00Presses specially adapted for particular purposes
    • B30B9/02Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/24Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
    • B30B9/246The material being conveyed around a drum between pressing bands

Abstract

PURPOSE:To improve working efficiency by providing pressing plates facing each other, executing intermittent high-pressure dehydration and disposing a gravity dehydration sludge hopper and feeding mechanism. CONSTITUTION:Two sheets of the pressing plates 7a, 7b facing each other are provided and the sludge sandwiched between filter cloths 5a and 5b is fed therebetween, by which the intermittent high-pressure dehydration is executed. The sludge supplied first to a mixing tank 1 is mixed and is fed to a gravity dehydration section 2 from which the sludge is intermittently supplied onto the belt-like filter cloth 5a through the sludge hopper 3 and the feeding mechanism 4. The sludge is subjected to the low-pressure dehydration between another filter cloth 5b and filter cloth 5a and is fed to the high-pressure dehydration section 7 to execute relatively the intermittent operation so that said dehydration is connected to the high-pressure dehydration of the plates 7a, 7b. The low- pressure dehydration and high-pressure dehydration are efficiently executed by the mechanism 4 and therefore the sludge treatment efficiency over the entire part is improved.

Description

【発明の詳細な説明】 本発明は高圧脱水処理装置に係シ、加圧板に工り間欠的
な高圧圧搾機構を有する高圧脱水装置に関して汚泥ホツ
ノZを採用することにエフ該高圧圧搾機構の間欠的作動
条件下において、それに前置されt重力脱水部を連続的
に作動せしめ、汚泥のフロック化等に関する処理を円滑
に実施させると共に高圧圧搾処理を、能率的に実施し得
るようKLjtものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-pressure dehydration treatment device, and the present invention relates to a high-pressure dewatering device having an intermittent high-pressure squeezing mechanism built into a pressurizing plate. Under normal operating conditions, the gravity dewatering section installed in front of the sludge is operated continuously to smoothly carry out processing related to sludge flocculation, etc., and to efficiently carry out high-pressure compression processing. .

産業上の利用分野 下水処理設備などから得られる汚泥その他の高圧脱水処
理装置。
Industrial applications High-pressure dewatering equipment for sludge and other materials obtained from sewage treatment facilities.

従来の技術 近時における下水道の普及に伴い、下水処理場などから
発生する汚泥ikは増大し、その処理、処分の効率化が
3i要視されつつあり、斯様な汚泥処理プロセスに占め
る脱水機に関して高能率化が要望されている。
Conventional technology With the recent spread of sewage systems, the amount of sludge generated from sewage treatment plants has increased, and 3i is becoming more and more efficient in its treatment and disposal. There is a demand for higher efficiency.

然して斯かる高効率脱水機の具備すべき要件としては、 ■ ケーキ含水率が低いこと(例えば下水混合生汚泥7
0%以下) ■ 高速−過性能を有すること(120kg1m時以上
) ■ 維持管理の容易なこと ■ 経済的であること ところでこれら条件の中の■に対しては加圧圧力を高め
ることが有効でちることは明らかで、!3図に加圧圧力
とケーキ含水率の関係を示し、又第4図に加圧時間とケ
ーキ含水率の関係を示すが、これらの結果からして加圧
圧力2kp/crI以上、加圧時間10分以上とするこ
とに1リケーキ含水率を70%以下となし得ることが理
解される。
However, the requirements that such a high-efficiency dewatering machine must meet are: ■ Low cake moisture content (for example, sewage mixed raw sludge 7
0% or less) ■ Must have high-speed performance (more than 120 kg/1 m) ■ Must be easy to maintain ■ Must be economical By the way, increasing the pressurizing pressure is effective against (1) among these conditions. It's obvious that it's gone! Figure 3 shows the relationship between pressurization pressure and cake moisture content, and Figure 4 shows the relationship between pressurization time and cake moisture content. From these results, it is clear that if the pressurization pressure is 2 kp/crI or more, the pressurization time is It is understood that if the heating time is 10 minutes or longer, the moisture content of one re-cake can be reduced to 70% or less.

然して第5図には従来の一般的なペルトゲレスを示し、
重力脱水部である供給コンベア14で受けられt汚泥は
重力脱水されながらベルト11上に供給され、該汚泥は
該ベルト11とベルト12との間においてローラ15お
工び16群を通過することKより加圧脱水される。
However, Fig. 5 shows the conventional general Peltogeles,
The sludge received by the supply conveyor 14, which is a gravity dewatering section, is fed onto the belt 11 while being gravity dehydrated, and the sludge passes through a group of rollers 15 and 16 between the belts 11 and 12. It is dehydrated under pressure.

又この第5図のものの加圧圧力を更に高めるようにした
ものが第6図の油圧機構などで作用する付加加圧ベルト
13とローラ17をも採用したものであり、更に高圧板
18t一対役して間欠的に高圧板18の加圧効果を与え
るようにされt非連続成板加圧方式のものは第7図に示
す通りでちって、何れのものもブレス処理さnた汚泥は
排出部19から取出さnる。
In addition, a version that further increases the pressure of the one shown in Fig. 5 is one that also employs an additional pressure belt 13 and roller 17 that act on the hydraulic mechanism shown in Fig. 6, and a pair of high-pressure plates 18t. The pressurizing effect of the high-pressure plate 18 is applied intermittently, and the discontinuous plate pressurizing method is shown in Figure 7. Take it out from section 19.

発明が解決しようとする問題点 然し上記し九ような従来のものにおいては夫々になお問
題点を有している。即ち第5図の工うにローラ15お工
び16群の間に単にベルトを懸回して加圧するだけでは
、ロー2面での面圧1:最高に採シ得るものでも1搬/
d以下であり、又実際に脱水作用として有効に働く時間
はローラ面を通過する時間でわるtめ有効脱水時間ヲ寥
分に採ることができない。
Problems to be Solved by the Invention However, each of the above nine conventional devices still has its own problems. In other words, if the belt is simply suspended between the rollers 15 and the rollers 16 in FIG.
d or less, and the time for which the water actually acts effectively as a dewatering action depends on the time it takes to pass through the roller surface, so the effective dewatering time cannot be taken into account.

第6図のものではその油圧機構などで作用される追加加
圧ベルト13の採用にニジその加圧圧力を10kg/c
r!を程度まで高め得るが、有効脱水時間としては同じ
く追加加圧ベルト13がローラに接している部分の通過
時間であって、充分となし得ない。従ってこの通過時間
を長くするためには多段にこの追加加圧ベルト13を採
用することが必要となり、その構成を複雑化し、装置を
大型化すると共に運転コストも嵩まざるを得ない。
The one in Figure 6 uses an additional pressure belt 13 that is operated by a hydraulic mechanism, etc., and the pressure is 10 kg/cm.
r! However, the effective dewatering time is also the time required for the additional pressure belt 13 to pass through the portion in contact with the roller, and cannot be achieved sufficiently. Therefore, in order to lengthen the passage time, it is necessary to employ the additional pressure belts 13 in multiple stages, which complicates the configuration, increases the size of the device, and increases operating costs.

この点薬7図のものでI−1ペルトゲレス脱水機の後半
に対設さf′L九加圧加圧板圧するものであるから加圧
圧力お工び加圧時間を任意に設定し得るが、該加圧板の
加圧時は停止することからベルトの走行に断続的となら
ざるを得ないことになり、斯うしたベルトのM続走行は
汚泥供給に関しても断続的とならざるを得ない。即ちこ
のようなベルトプレス脱水機においては、調質→重力脱
水→低圧加圧部→高圧加圧部の各工程を経て脱水さnる
が、こnらの各工程が断続運転されるとき最も問題とな
るのは、その調質工程でちる。蓋し該調質工程では供給
汚泥が凝集剤と共に混会されてフロック形成が行われ、
該フロック形成が最適状態で行われることが脱水工程に
対し重要な因子であって、汚泥供給、攪拌ないし凝集剤
添加などが一般的に連続化されることにニジこのフロッ
ク形成最適化が図らn1汚泥11度なども一定となるも
のであるに抱わらず、それらの各操作がすべて断続とな
ることは単に運転操作的に著しく煩雑であるはかシでな
く、フロック形gl&適化も乱れtものとならざるを得
ない。
This instillation shown in Figure 7 is installed opposite to the latter half of the I-1 Peltogelles dehydrator and uses a pressurizing plate f'L9, so the pressurizing pressure and pressurizing time can be set arbitrarily. Since the pressure plate stops when pressurizing, the running of the belt has to be intermittent, and the continuous running of the belt has to be intermittent in relation to sludge supply as well. In other words, in such a belt press dehydrator, dehydration is carried out through the following steps: heat treatment → gravity dehydration → low pressure pressurization section → high pressure pressurization section, but when each of these steps is operated intermittently, the most The problem lies in the tempering process. In the refining step, the supplied sludge is mixed with a flocculant to form flocs,
It is an important factor for the dewatering process that the floc formation is carried out in an optimal state, and optimization of floc formation is achieved because sludge supply, stirring, flocculant addition, etc. are generally continuous. Even though the sludge temperature is constant at 11 degrees, intermittent operations are not only extremely cumbersome in terms of operation, but also disrupt floc type GL & optimization. It has no choice but to become a thing.

なお加圧工程の途中にタイミングローラを設け、加圧板
で加圧している間にもローラを走行させて連続処理を行
うようなことも考えられるが、この場合に加圧時間を充
分に採ろうとすればローラの走行距離を長くせざるを得
す、装置自iが大型化する。又このような目的でベルト
の走行速度を遅く丁nば汚泥の供給、調質速度も変化す
ることが必要となって、底程遅続であっても上述し九と
ころと同様にそれらの制御を甚だしく困難とする。
It is also possible to install a timing roller in the middle of the pressure process and run the roller while the pressure plate is applying pressure to perform continuous processing. If this is done, the travel distance of the rollers will have to be increased, and the device i will become larger. In addition, if the running speed of the belt is slowed down for this purpose, it is necessary to change the sludge supply and tempering speeds, and even if the sludge is slow to reach the bottom, these controls must be carried out in the same way as described above. make it extremely difficult.

「発明の構氏」 問題点を解決する之めの手段 ベルト状ろ布間に汚泥を供給しそれらのベルト状P布の
懸回移送過程に対向する加圧板を配設して間欠的に高圧
脱水処理させる工うにしたものにおいて、前記した加圧
板配役域に前置された重力脱水部と上記したベルト状ろ
布の懸回移送過程との間に重力汚泥ホッパを設け〜該重
力脱水汚泥ホッパと前記ベルト状ろ布の懸回移送過程と
の間に切出し機mを設は定ことを特徴とする高圧脱水処
理装置。
``Structure of the invention'' Means for solving the problem: sludge is supplied between the belt-like filter cloths, and a pressurizing plate is disposed opposite to the process of suspending and transferring the belt-like P cloths to intermittently apply high pressure. In the dewatering device, a gravity sludge hopper is provided between the gravity dewatering unit placed in front of the pressure plate area and the belt-shaped filter cloth suspension transfer process. A high-pressure dehydration treatment apparatus, characterized in that a cutter m is installed between the belt-shaped filter cloth and the hanging transfer process.

作用 ベルト状ろ布間に供給されt汚泥はそれらベルト状p布
の懸回移送過程に対向して配設された加圧板によって間
欠的に高圧脱水処理されることに1って的確な好ましい
脱水を得しめる。
The sludge supplied between the belt-shaped filter cloths is intermittently subjected to high-pressure dehydration treatment by a pressurizing plate arranged opposite to the suspension transfer process of the belt-shaped filter cloths, which is a very suitable dehydration process. Acquire.

該加圧板による高圧脱水部と該高圧脱水部に前置された
重力脱水部との間に重力脱水ホッパを設けることによっ
て重力脱水部および該重力脱水部に前置され定汚泥に対
するフロック化処理などを連続的に実施せしめ、しかも
この重力脱水汚泥ホッパから切出し機構を介し適宜に切
出さしめて高圧脱水部における脱水処理を所定の高圧条
件および加圧時間を採って的確に実施させる。
By providing a gravity dewatering hopper between the high-pressure dewatering section using the pressure plate and the gravity dewatering section located in front of the high-pressure dewatering section, the gravity dewatering section and the gravity dewatering section are provided in front of the gravity dewatering section to perform flocculation treatment for fixed sludge, etc. The sludge is continuously carried out, and the sludge is appropriately cut out from this gravity dewatered sludge hopper via a cut-out mechanism, and the dewatering process in the high-pressure dewatering section is carried out accurately under predetermined high-pressure conditions and pressurization time.

高圧脱水部において得られる加圧の程度と時間は該高圧
脱水部を経て得られる汚泥クー中の含水率を決定的に支
配し、的確な含水率として脱水されt汚泥ケーキを得し
める。
The degree and time of pressurization obtained in the high-pressure dewatering section decisively control the water content in the sludge cake obtained through the high-pressure dewatering section, and the sludge cake is dehydrated with an appropriate water content.

実施例 上記し比重うな本発明によるものの具体的な実施態様を
添附図面に示すものについて説明すると、汚泥貯留槽な
どから供給され之汚泥は凝集剤と共に混合槽1に収容さ
れ、適当な攪拌条件下で汚泥フロックが形成さ九、この
工うにしてフロック形成後の汚泥は重力脱水部2に導か
れて重力脱水後に汚泥ホッパぐ3に受けられる。
EXAMPLE A concrete embodiment of the invention according to the above-mentioned specific gravity will be described with reference to the attached drawings. Sludge is supplied from a sludge storage tank, etc., and is stored in a mixing tank 1 together with a flocculant, and is heated under suitable stirring conditions. Sludge flocs are formed in this manner, and the sludge after floc formation is guided to the gravity dewatering section 2 and received by the sludge hopper 3 after gravity dewatering.

上町汚泥ホッパ3はその底部に切出し機構4が設けられ
、間欠的に作動されて汚泥を切出す。
The Kamimachi sludge hopper 3 is provided with a cutting mechanism 4 at its bottom, which is operated intermittently to cut out the sludge.

このようにして切出された汚泥はベルト状F布5a上に
供給され、別に該F布5a上に導かれるベルト状F布5
bと9間に挾まれて低圧脱水部6に導かれ、配設された
ローラ間を蛇行しながら脱水されて高圧脱水部7に送ら
れる。高圧脱水部7の構成は、対向する2枚の加圧板7
 a。
The sludge cut out in this way is supplied onto the belt-like F cloth 5a, and is separately led onto the belt-like F cloth 5a.
It is sandwiched between b and 9 and guided to a low-pressure dewatering section 6, dehydrated while meandering between rollers, and sent to a high-pressure dehydrating section 7. The high-pressure dehydration section 7 is composed of two facing pressure plates 7.
a.

7bの間に上記した工うな炉布5a、5b間に挾まれた
汚泥を送シ込み、F布5a15bの走行を停止させた状
態で油圧その他の加圧機構を採用することに工、!55
に?/c−d以上の加圧力で汚泥を脱水するように成っ
ている。
The sludge sandwiched between the furnace cloths 5a and 5b is fed between the furnace cloths 5a and 5b, and a hydraulic or other pressurizing mechanism is used while the F cloths 5a and 5b are stopped! 55
To? The sludge is dehydrated with a pressure of /c-d or more.

上記のような加圧板7a、7bKjつて高圧脱水された
汚泥はベルト状ヂ布5aに臨ませられ友スクレーパ9に
よって該炉布5aから剥離され、コンベヤ(図示せず)
などによって次工程に送られるが、前記した汚泥ホッパ
3からの重力脱水されt汚泥の切出しは前述し次高圧加
圧部7お工び炉布5a、5bの駆動ドラム8に連動して
行われる工うに電気的又は機械的に適当な連動手段が設
けられていて、高圧加圧部7における加圧中はそれらの
駆動が停止される。
The sludge that has been subjected to high-pressure dewatering using the pressure plates 7a and 7bKj as described above is exposed to the belt-like cloth 5a, and is peeled off from the furnace cloth 5a by a scraper 9, and conveyed to a conveyor (not shown).
The gravity-dehydrated sludge from the sludge hopper 3 is cut out in conjunction with the drive drum 8 of the high-pressure pressurizing section 7 and the furnace cloths 5a and 5b. Appropriate electrical or mechanical interlocking means are provided for the operation, and their driving is stopped during pressurization in the high pressure pressurizing section 7.

汚泥混合槽1におけるフロック形成処理および重力脱水
部2における重力脱水処理はそれらの間において連続的
に行われ、前記汚泥ホッパ43に貯留される。
The floc formation process in the sludge mixing tank 1 and the gravity dewatering process in the gravity dewatering section 2 are performed continuously between them, and the sludge is stored in the sludge hopper 43.

一般的に脱水されるべく供給汚泥における固形物S度F
12〜6%程度であり、重力脱水後の汚泥くおける汚泥
の含水率は90%程置装なっている。このことは重力脱
水されることによって汚泥が容積的にi50〜60%減
少することであって、原汚泥のままで貯留する場合に比
較しホッパ容積を小型とすることができ、汚泥ホツー#
3以後の設備の大きさないし作動条件も軽減される。父
上記のようにして調質工程、重力脱水工程が連続運転さ
れるので、それらの工程における運転条件を最適状態と
して操業でき、原汚泥の性状が変化し九ときに調整する
程夏で、。
Solids S degree F in feed sludge to be generally dewatered
The moisture content of the sludge in the sludge pile after gravity dewatering is about 90%. This means that gravity dewatering reduces the volume of sludge by 50 to 60%, and compared to storing raw sludge, the hopper volume can be made smaller.
The size and operating conditions of the equipment after 3 are also reduced. Since the refining process and the gravity dewatering process are operated continuously as described above, the operating conditions in these processes can be operated in the optimal state, and the properties of the raw sludge change and are adjusted in the summer.

高度な制御機構を用い、又煩雑な操作を必要としなり。It uses a sophisticated control mechanism and requires complicated operations.

切出し機構4は間欠的に重力脱水汚泥を切出し得るもの
でちれば、その構造はどのような構成のものでも工く、
高圧加圧部7における加圧後に炉布5a、5bl走行さ
せ、スクレーパ9によってケーキを剥離する間に該切出
し機構4. を作動させ、駆動ドラム8で移動させられ
るデ布5a上に重力脱水汚泥を切出す。この工うな汚泥
ホッパぐ3お工び切出し機構4についての具体例は第2
図に示す如くでちり、ロー241を牛径方向において2
段となる工うに配設し、こnらのローラ41.41間に
F布42を図示の工うに懸け、内径部ローンと外径部ロ
ーラとの間の外側部に空隙部43が形成されるようにし
、このものを回転させることによってその外径部ローラ
が切出し49!1114部分のホン/ぐ側壁と接し、切
出し機構4の回転が停止している間は重力脱水汚泥が落
下しない。その回転によって空隙部43内に充填し九所
定量の汚泥が順次に排出される。ホラ/−3内の重力脱
水汚泥は七の圧密化に工って分1jlさrL九水分がP
布42を介してベルト状p布51に滴下し、その下部に
設けられeF液受(図示せず)に受けられるが、斯うし
てホッパぐ3内でも脱水が図られることにより、含水率
の一層低い重力脱水汚泥が低圧脱水部6に供給される。
The cutting mechanism 4 may have any structure as long as it can cut out gravity-dehydrated sludge intermittently.
After pressurizing in the high pressure pressurizing section 7, the furnace cloths 5a and 5bl are run, and while the cake is peeled off by the scraper 9, the cutting mechanism 4. is operated, and the gravity-dehydrated sludge is cut out onto the cloth 5a that is moved by the drive drum 8. A specific example of this sludge hopper 3 and cut-out mechanism 4 is shown in the second section.
As shown in the figure, the row 241 is placed 2 times in the cow radial direction.
The F cloth 42 is hung between these rollers 41 and 41 in the groove shown in the figure, and a gap 43 is formed on the outer side between the inner diameter roller and the outer diameter roller. By rotating this device, the outer diameter roller comes into contact with the side wall of the cutout section 49!1114, and the gravity-dehydrated sludge does not fall while the rotation of the cutout mechanism 4 is stopped. Due to the rotation, nine predetermined amounts of sludge that fills the cavity 43 are sequentially discharged. The gravity-dehydrated sludge in Hola/-3 is consolidated by 7 minutes, and the water content is 1 jl and 9 water is P.
It is dripped onto the belt-like p-cloth 51 through the cloth 42 and received by an eF liquid receiver (not shown) provided at the bottom of the cloth 42, but dehydration is also carried out in the hopper 3, so that the water content is reduced. The lower gravity dewatered sludge is supplied to the low pressure dewatering section 6.

低圧脱水部6に供給される重力脱水汚泥の含水rP1に
上記の15にしてできるだけ低下することは該汚泥の流
動性を低下することであって、この低圧脱水部6の入口
部分などにおける汚泥リークを回避し、又該低圧脱水部
6の加圧力金高く設定せしめる。このことは更に高圧脱
水部に供給される汚泥ケーキの含水率低下を来さしめ、
高圧脱水処理時間の短縮、処理量増大などをも九ら丁。
Decreasing the water content rP1 of the gravity-dehydrated sludge supplied to the low-pressure dewatering section 6 to the above 15 as much as possible reduces the fluidity of the sludge, and prevents sludge leakage at the inlet of the low-pressure dewatering section 6. In addition, the pressurizing pressure of the low-pressure dewatering section 6 is set high. This further causes a decrease in the water content of the sludge cake supplied to the high-pressure dewatering section.
It also shortens high-pressure dehydration processing time and increases throughput.

n記し7を第2図の切出し機構4で切出され7tt力脱
水汚泥はベルト状P布5a上に塊状として連続的に落下
するが、低圧脱水部6における脱水処理で戸布5a、5
b間において略一様な厚さをもつ層として展開される。
The 7 tt force-dehydrated sludge cut out by the cut-out mechanism 4 shown in FIG.
The layer is developed as a layer having a substantially uniform thickness between the layers b.

「発明の効果」 以上説明し比重うな本発明てよるときはベルト状ろ布の
懸回移送過程に対向する加圧板を配設して間欠的に高圧
脱水処理させる工うにしたものにおいて、前記の工つな
加圧板配役域に前置された重力脱水部と上記したベルト
状ろ布の懸回移送過程との間に重力脱水汚泥ホッパぐ金
設け、該ホッパと前記ベルト状ろ布懸回移送過程との間
に切出し機構を設けることにより汚泥に対する調質工程
や重力脱水工程に影響を与えることなしに間欠的な前記
高圧脱水処理を行わせ、即ち任意の時間および圧力によ
る的確な高圧脱水を得しめると共にv4質ないし重力脱
水工程を連続的且つ最適状態で実施することを可能とす
るものでちって、しかも単にホッパを追加する程度で装
置全体のコン/ダクト化を光分に図るなどの効果1:有
し、工業的に七の効果の大きい発明である。
``Effects of the Invention'' As explained above, the present invention is based on the above-mentioned method in which a pressurizing plate is disposed opposite to the suspended conveyance process of the belt-like filter cloth to perform high-pressure dehydration treatment intermittently. A gravity dewatering sludge hopper girder is provided between the gravity dewatering section placed in front of the continuous pressure plate distribution area and the above-mentioned hanging transfer process of the belt-like filter cloth, and the hopper and the above-mentioned belt-like filter cloth hanging transfer process are provided. By providing a cut-out mechanism between the sludge process and the sludge treatment process, the intermittent high-pressure dewatering process can be carried out without affecting the sludge refining process or gravity dewatering process, that is, accurate high-pressure dewatering can be performed at any desired time and pressure. In addition, it is possible to carry out the V4 quality or gravity dewatering process continuously and in an optimal state.Moreover, it is possible to convert the entire equipment into a conductor/duct by simply adding a hopper. Effect 1: This invention has 7 industrially significant effects.

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

図面は本発明の技術的内容を示すものであって、第1図
は本発明による高圧脱水処理装置の全般的な構成関係を
示し7’ei5!明図、wcz図は七のホラ/4’下端
部分の切出し機構部分の断面図、第3図は下水処理場の
汚泥処理によって得られるケーキ含水率に対する加圧圧
力の関係?示し九図聚、第4図は同じくケーキ含水率に
対する加圧時間の関係を示した9異、第5図は従来の一
般的なベルトプレス装置についての側面的説明図、第6
図は七の付加加圧ベルトt−用いtものの側面的説明図
、第7図は同じ〈従来の高圧板加圧方式によるベルトプ
レス装置の側面的説明図である。 然してこnらの図面において、1は′l&台檀、2は重
力脱水部、3d汚泥ホツパ、4は切出し機構、5a、5
bはベルト状ろ布、6は低圧脱水部、フは高圧脱水部、
フa、7bは加圧板、8は駆動ドラム、9はスクレーパ
、41はローラ、42はF布、43は空隙部を示すもの
である。 第  /  圓 O4 ハ 11−2  同 第 4 ■ オロ ノE 峙 肯ら (介う 淳 6 I 一 /、/ 第  6  圓
The drawings show the technical contents of the present invention, and FIG. 1 shows the general structural relationship of the high-pressure dehydration treatment apparatus according to the present invention. The clear and wcz diagrams are cross-sectional views of the cutting mechanism at the lower end of the 7th hole/4', and Figure 3 shows the relationship between pressurization pressure and cake moisture content obtained by sludge treatment at a sewage treatment plant. Figure 4 shows the relationship between cake moisture content and pressurization time; Figure 5 is a side view of a conventional general belt press;
The figure is a side explanatory view of a device using the additional pressure belt No. 7, and FIG. However, in these drawings, 1 is the 'l & platform, 2 is the gravity dewatering section, 3d is the sludge hopper, 4 is the cutting mechanism, 5a, 5
b is a belt-like filter cloth, 6 is a low-pressure dehydration section, f is a high-pressure dehydration section,
Numerals a and 7b are pressure plates, 8 is a driving drum, 9 is a scraper, 41 is a roller, 42 is an F cloth, and 43 is a gap. No. / En O4 Ha 11-2 Same No. 4 ■ Orono E Tachikenra (Intermediate Jun 6 I 1/, / No. 6 En

Claims (1)

【特許請求の範囲】 1 ベルト状ろ布間に汚泥を供給しそれらのベルト状ろ
布の懸回移送過程に対向する加圧板を配設して間欠的に
高圧脱水処理させるようにしたものにおいて、前記した
加圧板配設域に前置された重力脱水部と上記したベルト
状ろ布の懸回移送過程との間に重力脱水汚泥ホッパを設
け、該重力脱水汚泥ホッパと前記ベルト状ろ布の懸回移
送過程との間に切出し機構を設けたことを特徴とする高
圧脱水処理装置。 2 ろ過材によつて切出し機構を形成した特許請求の範
囲第1項に記載の高圧脱水処理装置。 3 切出し機構を加圧板を配設した高圧脱水部と連動さ
せた特許請求の範囲第1項に記載の高圧脱水処理装置。
[Scope of Claims] 1. In an apparatus in which sludge is supplied between belt-like filter cloths and a pressure plate is disposed opposite to the suspended transfer process of the belt-like filter cloths to perform high-pressure dehydration treatment intermittently. , a gravity dewatering sludge hopper is provided between the gravity dewatering unit disposed in front of the pressure plate installation area and the belt-like filter cloth suspension transfer process, and the gravity dewatering sludge hopper and the belt-like filter cloth 1. A high-pressure dehydration treatment apparatus characterized in that a cutting mechanism is provided between the suspension transfer process and the suspension transfer process. 2. The high-pressure dehydration treatment apparatus according to claim 1, wherein the cutting mechanism is formed of a filter material. 3. The high-pressure dehydration treatment apparatus according to claim 1, wherein the cutting mechanism is linked with a high-pressure dehydration section provided with a pressure plate.
JP60103918A 1985-05-17 1985-05-17 High-pressure dehydration treatment device Pending JPS61262498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60103918A JPS61262498A (en) 1985-05-17 1985-05-17 High-pressure dehydration treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60103918A JPS61262498A (en) 1985-05-17 1985-05-17 High-pressure dehydration treatment device

Publications (1)

Publication Number Publication Date
JPS61262498A true JPS61262498A (en) 1986-11-20

Family

ID=14366805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60103918A Pending JPS61262498A (en) 1985-05-17 1985-05-17 High-pressure dehydration treatment device

Country Status (1)

Country Link
JP (1) JPS61262498A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005218888A (en) * 2004-02-03 2005-08-18 Kurita Water Ind Ltd Sludge dehydrator and sludge dehydration method
CN108863009A (en) * 2018-09-03 2018-11-23 江苏博环保科技有限公司 A kind of totally-enclosed heavy type belt concentration filter press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005218888A (en) * 2004-02-03 2005-08-18 Kurita Water Ind Ltd Sludge dehydrator and sludge dehydration method
JP4513344B2 (en) * 2004-02-03 2010-07-28 栗田工業株式会社 Sludge dewatering equipment
CN108863009A (en) * 2018-09-03 2018-11-23 江苏博环保科技有限公司 A kind of totally-enclosed heavy type belt concentration filter press
WO2020048033A1 (en) * 2018-09-03 2020-03-12 江苏博一环保科技有限公司 Fully enclosed heavy-duty conveyor-type concentrating filter press

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