JPS6055165B2 - Dehydration method - Google Patents
Dehydration methodInfo
- Publication number
- JPS6055165B2 JPS6055165B2 JP53116662A JP11666278A JPS6055165B2 JP S6055165 B2 JPS6055165 B2 JP S6055165B2 JP 53116662 A JP53116662 A JP 53116662A JP 11666278 A JP11666278 A JP 11666278A JP S6055165 B2 JPS6055165 B2 JP S6055165B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- spherical
- containing substance
- substance
- dehydration
- 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
Landscapes
- Filtration Of Liquid (AREA)
Description
【発明の詳細な説明】
本発明は浄水汚泥、下水汚泥、ベントナイト汚泥、製
紙汚泥等の含水物質の脱水固形化方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for dehydrating and solidifying water-containing substances such as purified water sludge, sewage sludge, bentonite sludge, and papermaking sludge.
従来各種の含水物質の脱水処理方法は、プレス脱水機
または重力脱水機あるいはこれらを組合せた装置を用い
て行なわれていた。Conventionally, various methods for dehydrating water-containing substances have been carried out using a press dehydrator, a gravity dehydrator, or a combination thereof.
プレス脱水機は高い脱水率を達成しうるが、その処理能
力が低いために含水物質の処理量に限度があり、また装
置自体も大型であるために狭い土木現場等での使用には
適していない。一方重力脱水機は比較的簡単な装置によ
り大量に処理しうるという利点を有しているが、反面脱
水性が劣るという欠点を有している。このため、重力脱
水機においてはこの脱水性を向上せしめるため装置を大
型化したり、あるいはプレス式脱水機との組合せによつ
て含水物質の処理を行なつていた。 たとえば特公昭４
６−１６７５号公報には、高分子凝集剤を添加した懸濁
液を回転軸をほぼ水平に保つ筒状回転容器に供給し、こ
の容器を容器内にある程度水位を保たせつつ回転させる
ことによつて液中の懸濁物をペレット状となし、次いで
これらのペレットと液とをロータリースクリーン内に導
入して液を分離することを特徴とする脱水方法が開示さ
れている。また本発明者に係る実開昭４９−１４３４３
四公報には、内周壁に邪魔板を有する回転容器、周壁が
全網状の部材により構成された回転容器および内周壁に
邪魔板を有しかつドーナツ状の枠体によつて複数の室に
区分してなる回転容器を別体として組合せてなる汚泥脱
水固形化装置が開示されている。 本発明者は上記の欠
点を克服すべき鋭意研究した結果、従来用いられている
含水物質の処理方法に著しく簡単な構成を付加すること
によつて脱水性能の優れた含水物質の処理方法を提供し
うることを見出し、本発明を完成するに到つた。Press dehydrators can achieve high dehydration rates, but their low processing capacity limits the amount of water-containing substances they can process, and the equipment itself is large, making it unsuitable for use in narrow civil engineering sites. do not have. On the other hand, a gravity dehydrator has the advantage of being able to process a large amount with a relatively simple device, but has the disadvantage of poor dewatering performance. For this reason, in order to improve the dewatering performance of gravity dehydrators, water-containing substances have been treated by increasing the size of the device or by combining it with a press type dehydrator. For example, Tokko Sho 4
Publication No. 6-1675 discloses that a suspension containing a polymer flocculant is supplied to a cylindrical rotating container whose axis of rotation is kept almost horizontal, and the container is rotated while maintaining a certain level of water level in the container. Therefore, a dehydration method is disclosed, which is characterized in that a suspended substance in a liquid is made into pellets, and then these pellets and the liquid are introduced into a rotary screen to separate the liquid. Also, Utility Model Application Publication No. 49-14343 related to the present inventor
Publication No. 4 describes a rotary container having a baffle plate on the inner circumferential wall, a rotary container in which the circumferential wall is entirely made of a net-like member, and a rotary container having a baffle plate in the inner circumferential wall and divided into a plurality of chambers by a donut-shaped frame. A sludge dewatering and solidifying device is disclosed, which is formed by combining a rotating container as a separate unit. As a result of intensive research to overcome the above-mentioned drawbacks, the present inventors have provided a method for treating water-containing substances with excellent dehydration performance by adding an extremely simple configuration to the conventional method for treating water-containing substances. They have discovered that it is possible and have completed the present invention.
すなわち本発明は、含水物質を移動しながら脱水する
にあたり、該含水物質の上部に球状または円筒状物体を
投入し、該物体の回転運動により含水物質の脱水を促進
することを特徴とする含水物質の脱水方法である。That is, the present invention provides a method for dehydrating a hydrated substance while moving the hydrated substance, in which a spherical or cylindrical object is placed on top of the hydrated substance, and the rotational movement of the object accelerates the dehydration of the hydrated substance. This is a dehydration method.
本発明において、含水物質は移動する際に脱水される
。In the present invention, water-containing substances are dehydrated during movement.
含水物質を移動しながら脱水する装置としては、たとえ
ば特公昭４６−１６７８号公報に開示されているような
筒状回転容器およびロータリースクリーンを備えた脱水
装置、あるいは実開昭４９−１４３４３四公報に開示さ
れているような脱水装置またはベルトコンベア式の脱水
装置が挙げられる。一般に含水物質の脱水工程において
は、含水物質は通常移動するため、一本発明方法は広く
用いられうる。 本発明において用いられる球状または
円筒状物体は、比重が１以上であればよいが、含水物質
の比重よりも大きいことが好ましい。As an apparatus for dehydrating water-containing substances while moving them, for example, a dehydrating apparatus equipped with a cylindrical rotating container and a rotary screen as disclosed in Japanese Patent Publication No. 46-1678, or a dehydrating apparatus as disclosed in Japanese Utility Model Publication No. 49-143434, Examples include a dewatering device as disclosed or a belt conveyor type dewatering device. Generally, in the dehydration process of a water-containing substance, the water-containing substance usually moves, so the method of the present invention can be widely used. The spherical or cylindrical object used in the present invention only needs to have a specific gravity of 1 or more, but it is preferably larger than the specific gravity of the water-containing substance.
この球状または円筒状物体は比重が１以上の物質でつく
られ、たとえば鉄、銅、亜鉛などの金属、エボナイトな
どの樹脂、または陶磁などからつくられる。またこの球
状または円筒状物体の直径および円筒状物体の長さは、
特に限られるものではなく、含水物質の性状および脱水
工程で用いる装置の大小に応じて広く変化することがで
き、たとえば１０〜４００順好ましくは２０〜２５０７
７！７７！てある。また本発明においては含水物質のみ
が筒状回転脱水容器から取出され、球状物体は該容器内
に残留することが好ましい。本発明において上記のよう
な球状または円筒状物体を移動しつつある含水物質の上
部に投入し、この物体の回転運動により効果的な脱水効
率が得られる。This spherical or cylindrical object is made of a substance with a specific gravity of 1 or more, such as metals such as iron, copper, and zinc, resins such as ebonite, or ceramics. Also, the diameter of this spherical or cylindrical object and the length of the cylindrical object are
It is not particularly limited, and can vary widely depending on the properties of the water-containing substance and the size of the equipment used in the dehydration step, for example, in the order of 10 to 400, preferably 20 to 2507
7!77! There is. Further, in the present invention, it is preferable that only the water-containing substance is taken out from the cylindrical rotating dehydration container, and the spherical objects remain in the container. In the present invention, a spherical or cylindrical object as described above is thrown onto the top of a moving water-containing substance, and effective dewatering efficiency can be obtained by the rotational movement of this object.
すなわち、含水物質と水との分離をたとえば単に筒状回
転脱水容器を用いて行なう場合と比較して、球状または
円筒状物体を上記筒状回転容器に投入することにより、
この球状または円筒状物体が筒状回転脱水容器の回転に
伴つて回転し、これにより含水物質は球状または円筒状
物体の重量により脱水されるため含水物質の脱水率は向
上する。ここて本発明を一実施例である図面によつて説
明するが、これらに限定されるものではない。That is, compared to the case where a water-containing substance and water are separated from each other simply by using a cylindrical rotating dehydration container, by putting a spherical or cylindrical object into the cylindrical rotating container,
This spherical or cylindrical object rotates with the rotation of the cylindrical rotating dehydration container, whereby the water-containing substance is dehydrated by the weight of the spherical or cylindrical object, so that the dehydration rate of the water-containing substance is improved. The present invention will now be explained with reference to the drawings, which are examples, but are not limited thereto.
第１図において１は筒状回転脱水容器であるロータリー
スクリーンであり、２はスクリーンである。原スラッジ
４をロータリースクリーン１へ供給して回転すると、含
水物質６はロータリースクリーン１の内壁にて回転され
ながら脱水される。その際球状物体３が該ロータリース
クリーン内に複数個存在しているため、含水物質６は球
状物体３とロータリースクリーン１の間にはさまり球状
物体３の重みによつてさらに脱水される。ロータリース
クリーン１下方には分離液受５が設けられている。また
ロータリースクリーンの一端には、脱水された物質８を
集めるための脱水された物質受７が設けられている。第
２図は本発明の別の実施例であつて１１は含水物質搬送
用ベルトコンベアであつて、１２，１２゛は駆動ローラ
、１３は無端搬送ベルトからなつており、ベルトコンベ
ア１１は上り傾斜して設置されている。In FIG. 1, 1 is a rotary screen which is a cylindrical rotating dehydration container, and 2 is a screen. When the raw sludge 4 is supplied to the rotary screen 1 and rotated, the water-containing substance 6 is dehydrated while being rotated on the inner wall of the rotary screen 1. At this time, since a plurality of spherical objects 3 are present within the rotary screen, the water-containing substance 6 is sandwiched between the spherical objects 3 and the rotary screen 1 and is further dehydrated by the weight of the spherical objects 3. A separated liquid receiver 5 is provided below the rotary screen 1. A dehydrated material receiver 7 for collecting dehydrated material 8 is also provided at one end of the rotary screen. FIG. 2 shows another embodiment of the present invention, in which 11 is a belt conveyor for conveying water-containing substances, 12 and 12' are drive rollers, and 13 is an endless conveyor belt, and the belt conveyor 11 has an upward slope. It is installed as follows.
４は原スラッジであり、そして１５は原スラッジ収容ホ
ッパーである。4 is raw sludge, and 15 is a raw sludge storage hopper.
無端搬送ベルト１３の上方区間には、球状物体３のすベ
リ落ち防止手段１６が設けられている。１８は脱水され
た物質８の回収手段であり、１９は球状物体の流出防止
手段である。含水物質６はホッパー１５を介して無端搬
送ベルト１３の上方区間に供給され、上り傾斜面を移動
しつつ脱水される。その際球状物体３が存在すると、含
水物質６は球状物体３の回転運動により効果的に脱水さ
れる。In the upper section of the endless conveyor belt 13, means 16 for preventing the spherical object 3 from slipping is provided. 18 is a recovery means for the dehydrated substance 8, and 19 is a means for preventing the spherical object from flowing out. The water-containing substance 6 is supplied to the upper section of the endless conveyor belt 13 via the hopper 15, and is dehydrated while moving on an upward slope. In this case, if the spherical object 3 is present, the water-containing substance 6 is effectively dehydrated by the rotational movement of the spherical object 3.
第１および２図は本発明の一実施例の説明断面図である
。
１・・・・・・ロータリースクリーン、３・・・・・・
球状物体、６・・・・・・含水物質。1 and 2 are explanatory cross-sectional views of one embodiment of the present invention. 1...Rotary screen, 3...
Spherical object, 6... Water-containing substance.
Claims (1)
物質の上部に球状または円筒状物体を投入し、該物体の
回転運動により含水物質の脱水を促進することを特徴と
する含水物質の脱水方法。1. A method for dehydrating a water-containing substance, which is characterized in that when dehydrating the water-containing substance while moving, a spherical or cylindrical object is placed above the water-containing substance, and the rotational movement of the object accelerates the dehydration of the water-containing substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53116662A JPS6055165B2 (en) | 1978-09-25 | 1978-09-25 | Dehydration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53116662A JPS6055165B2 (en) | 1978-09-25 | 1978-09-25 | Dehydration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5544313A JPS5544313A (en) | 1980-03-28 |
| JPS6055165B2 true JPS6055165B2 (en) | 1985-12-04 |
Family
ID=14692781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53116662A Expired JPS6055165B2 (en) | 1978-09-25 | 1978-09-25 | Dehydration method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6055165B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49103253A (en) * | 1973-02-05 | 1974-09-30 | ||
| JPS52130057A (en) * | 1976-04-23 | 1977-11-01 | Daiwa Kogyo Co | Apparatus for processing coal containing soil |
| JPS5345577U (en) * | 1976-09-22 | 1978-04-18 |
-
1978
- 1978-09-25 JP JP53116662A patent/JPS6055165B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5544313A (en) | 1980-03-28 |
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