JP4158082B2

JP4158082B2 - Solid-liquid separator

Info

Publication number: JP4158082B2
Application number: JP2002054945A
Authority: JP
Inventors: 充弘藤原
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-23
Filing date: 2002-01-23
Publication date: 2008-10-01
Anticipated expiration: 2022-01-23
Also published as: JP2003210910A

Description

【０００１】
【産業上の利用分野】
この発明は、固液分離装置に関する。
【０００２】
【従来の技術】
例えば、沈澱池内から導入されてくるスカム含水を受け入れて浮上するスカム類と水と沈澱する汚泥とに分離し個別排除する固液分離装置は周知のものである。
【０００３】
【発明が解決しようとする課題】
ところで、こうした固液分離装置は、前記分離性能の向上を図ることがその目標としてある訳であるが、これまでの固液分離装置では今一つ分離性能を得られないこともあり、その対策が望まれていた。
【０００４】
この発明は前記課題を解決するためになされたもので、その目的とするところは、分離性能のより高いレベルへの向上を達成することのできる固液分離装置を提供することにある。
【０００５】
【課題を解決するための手段】
この発明は前記課題を解決するためになされたもので、請求項１記載の発明は、縦筒胴状の槽本体と、同槽本体の周胴部を通じて外部から内部へ向けて延びる第１パイプと同第１パイプに連通状とされ槽本体の略中央を上方へと向けて延びる第２パイプとを備えて同槽本体内にスカム含水のような処理対象水を導入して前記第２パイプ上端の導出端口を通じて前記処理対象水を導出する導入パイプと、下端が開口状をした筒胴状のもので前記導出端口の外周に離間して同心状に配置されて導出端口からの処理対象水を受け入れてその噴き上げエネルギーをその内部域にて減衰させるとともに前記下端の開口より導出を可能とする第１減衰制御筒と、上端全体が開口し下端が第２パイプを通した状態で閉塞する縦筒胴状のもので第１減衰制御筒よりも大径の筒体とされ下部が第２パイプの外周に対応し上部が第１減衰制御筒の下半部外周に対応して配置された第２減衰制御筒と、上下が全体的に開口されているとともに第２減衰制御筒よりも大径とされた縦筒胴状で第２減衰制御筒の外周にあって同第２減衰制御筒と同心状に配置されるとともに下端の開口が槽本体底面との間に流通間隔を置く状態で第２減衰制御筒下端よりも低く位置し上端の開口が第２減衰制御筒上端よりも高く位置する分離制御筒と、同分離制御筒の外周囲に配置されて分離制御筒の下端を越えて分離し上昇流となる水を受け入れて排除する分離水導出部とを備える一方、下方への沈澱物は排除可能とし、上方へ浮上した浮上分離物は別途排除可能に構成した固液分離装置であって、前記第１パイプは、槽本体の筒中心を通るべく同槽本体および分離制御筒の対応する周２個所を貫通して槽本体および分離制御筒を支持すべく配置されるとともに槽本体から突き出た一端が処理対象水の導入側とされ他端の突き出た部分が閉塞状とされ、かつ、同第１パイプは、架台に連結支持され、同第１パイプの中途個所を介して第２パイプが連通して立ち上がっていることを特徴とする。
【０００６】
【発明の実施の形態】
以下、図示した実施形態を参照してこの発明を詳細に説明する。
図１ないし図３は、この発明の一実施形態を示すもので、１は槽本体で、同槽本体１は、縦丸胴状でその下部が下窄まり状の汚泥ガイド部２とされているとともに、同ガイド部２の下端には、エルボ状をなして汚泥排除パイプ３が連通状に接続されている。
【０００７】
汚泥排除パイプ３には、下部モーター４が設けられていて下部駆動軸５を介して図２のように湾曲状の汚泥排除スクレーパ６を矢印方向に連続あるいは定期的に回転させ、これにより、汚泥ガイド部２上に沈澱する汚泥類を中心下部にかき集めて汚泥排除パイプ３内に誘導し排除するようになっている。吸出ポンプを設備してもよい。同ポンプはスクリュウ式でもよい。
【０００８】
８は架台である。同架台８は、台座フレーム９と、同フレーム９から立ち上がる複数本（４本）ずつの内部支柱１０…、外部支柱１１…と、これら支柱１０，１１間を斜めにつなぎ前記汚泥ガイド部２の窄まり状外面が載り掛かるようになる受座フレーム１２…とからなる一体型のフレームになっている。尚、図１に仮想線で示すように、汚泥ガイド部２の底面には、バイブレータ１３を付設して汚泥の流れを円滑化するようにしてもよい。
【０００９】
前記槽本体１は、その下部に導入パイプ１５を備える。このパイプ１５は、第１パイプ１６と第２パイプ１７とを備える逆Ｔ字形をなすものであり、第１パイプ１６は、槽本体１を貫通して外部に一部突出するようにして固定されており、図１のように、同第１パイプ１６の右端には、誘導パイプ１８が接続されてスカム含水を誘導してくるようにされる一方、第１パイプ１６の左端部は着脱自在な閉止板１９により閉止されている。
【００１０】
第２パイプ１７は、第１パイプ１６の長手方向中間から連通状に立ち上がって槽本体１の略中央を上方へと向けて延びるものとされるとともに、その上端の導出端口２０を通じて前記処理対象水を導出するようにされている。この導出端口２０は、上向き拡大状をなしているがストレートにしてもよい。
【００１１】
第２パイプ１７の下寄りの外周には、座板２１が溶接固着され、同座板２１上にパッキン２２を介して第２減衰制御筒２３が同心状に固定されている。この第２減衰制御筒２３は、円筒状の有底型のものとされ、止着具２４により座板２１上に脱着自在に固定されている。同第２減衰制御筒２３内の底部には、スポンジやゴムのような弾性緩衝材２５が装備されて別の止着具２６により脱着自在に固定されている一方、同制御筒２３の上端は開口２７として形成されて水面２８より少し下がったレベルに位置するようにしている。尚、外部支柱１１上に第１パイプ１６を載せつけるようにしてもよい。
【００１２】
３０は第１減衰制御筒で、同筒３０は、有蓋状で下端が開口３１とされて第２減衰制御筒２３よりも少し小さい径をした丸筒胴状のもので、その縦方向中程が前記導出端口２０の内周に位置するようにして同心状に配置されて、導出端口２０からの処理対象水を受け入れてその噴き上げエネルギーをその内部域にて減衰させるとともに前記下端の開口３１より下向きに導出可能に構成されている。開口３１からの処理対象水は、第２減衰制御筒２３内へと導かれることで、ここで、さらなる減衰効果を得る。第１減衰制御筒３０と第２減衰制御筒２３とは、四方あるいは三方の連結材３２により連結されている。
【００１３】
第１減衰制御筒３０の上蓋３３には抜き孔３４が複数開けられ、その上蓋３３の中央には下部軸受３５が固定されている。
【００１４】
３７はバッフルで、第２減衰制御筒２３の上部外周に対応して設けられ、水面２８を境に上下にわたるようにして配置されている。同バッフル３７の外周で槽本体１の内周に対応する個所には、分離制御筒３９が設けられている。この分離制御筒３９は、上端が水面２８より突き出し下端は導入パイプ１５の第１パイプ１６より下方にくるように高い幅をもって配置されている。同分離制御筒３９は、第２減衰制御筒２３と槽本体１との間に位置する。
【００１５】
この分離制御筒３９の上部外周には、角樋型をして上方にも延びる分離水導出部４１がぐるりに一体溶接されている。この分離水導出部４１は、分離制御筒３９と槽本体１との間に形成された分離水導出路４２を経由して越流する分離水を受け入れて排水パイプ４３から排出するようになっている。分離水導出部４１は、その基部４１ａが槽本体１の外周に対して外部から簡易に溶接固着されたものになっている。尚、槽本体１の上端は、水面２８よりも低く設定される。また、第２減衰制御筒２３とバッフル３７と分離制御筒３９、それに槽本体１との間は連結材３２により互いに連結固定されている。
【００１６】
前記バッフル３７の特定個所には、水面２８よりも低く切り欠かれた第１スカム流出口３７ａが形成されるとともに、前記分離制御筒３９の対応する個所にも同じく切り欠き状の第２スカム流出口３９ａが水面２８よりも低くなるようにして形成されている。そして、第２スカム流出口３９ａから外径方向にスカムを導くようにスカム流下路４４が形成され、そこには分離水が入らないように樋状にしてある。そのスカム流下路４４の末端には、コンベア式のスカム掻出装置４５が連結装備されている。
【００１７】
前記分離水導出部４１は丸胴状でその上端は上カバー４６が脱着自在に装備され、適宜に補強部材４７…を配してある。そして、この上カバー４６上には、減速機付きのモーター４８が設置され、その駆動軸４９の下端が前記下部軸受３５に支持されるとともに、同駆動軸４９回りには、スカムスクレーパ５０が回転自在に設けられている。
【００１８】
スカムスクレーパ５０は、アーム５１とゴム質のスクレーパ本体５２からなり、内方からのスカムを順次外方へと導くように湾曲したものになっている。スクレーパ本体５２は、図１のように、第２減衰制御筒２３とバッフル３７間、及びバッフル３７と分離制御筒３９間のそれぞれ水面上に浮上したスカムを周方向に掻き寄せて第１、第２スカム流出口３７ａ、３９ａへと導くようになっている。
【００１９】
尚、図１に仮想線で示す５３はバルブで、汚泥排除パイプ３からの分岐配管５４に設けられ、同バルブ５３を開くことで、配管５４から汚泥処理部５５に導かれてそこで腐植土などの処理手段で処理されたものが矢印のように再び汚泥の沈澱してくる域とか、他の仮想線で示すように導入パイプ１５内などに再導入されるようになっている。
【００２０】
また、図１に示すように、導入パイプ１５の下方や上方には、エアーレーションパイプ５７が設けられ、浮上に伴う分離作用を促進するようになっている。
【００２１】
尚、第１パイプ１６内には、図１の仮想線のように案内板５８を備えて第２パイプ１７へスカム含水の全てが流れ込むようにしてもよい。
【００２２】
図１に示すように、誘導パイプ１８から矢印Ａのように導かれてきたスカム含水は、第１パイプ１６から矢印Ｂの経路で第２パイプ１７内に流れ込み上昇流となって導出端口２０から流出してゆく。同口２０からのスカム含水は、第１減衰制御筒３０内へと矢印Ｃのように流出するが、前の段階で既にスカム含水があるので、ここで、そのもつエネルギーを減衰される。そして、第１減衰制御筒３０内で減衰されたスカム含水は、まだ混流化した状態にあり、矢印Ｄのように開口３１を通じて下降流となるが、直ぐに直径の大きい第２減衰制御筒２３内に入ることになるので、減速して静流化してゆくことになる。
【００２３】
こうした背景から、矢印Ｄの流れは次第に緩やかな流れになってここで第１段階の分離作用がなされ、ここでスカムが分離しながら矢印Ｅのように水や汚泥とともに浮上してゆくことになる。この状態では完全に静流化していないが、第２減衰制御筒２３の上端を越えたあとは、本格的に静流化と分離作用をすることになり、その結果、浮上したスカムは水面２８上に残り、汚泥は分離水とともに矢印Ｆのように自然下降してゆく。
【００２４】
そして、Ｆ流は、汚泥のＧ流と分離水のＩ流とに分かれ、Ｇ流の方は汚泥排除スクレーパ６により排除され、Ｉ流の方は、分離制御筒３９の下端を越えて分離水導出路４２内に入り上昇流となって矢印Ｊのように分離導出部４１内から排水パイプ４３を通じて排出されてゆく。
【００２５】
一方、矢印Ｈのように水面上に浮上したスカムやバッフル３７の上を越えたスカムの方は、分離制御筒３９の内周帯域に集まり、回転するスカムクレーパ５０により外径方向に押しやられながら図２の矢印方向に掻き寄せられ、その軌道上に開口する第１スカム流出口３７ａや第２スカム流出口３９ａ、さらに流下路４４を通じてスカム掻出装置４５により濃縮分として排出されることになる。
【００２６】
尚、図４に示す他の実施形態にように、中間のバッフル３７を省略し、その個所にＶ字形（Ｕや凵形でも可）断面を有するスカム受樋６０を設置してもよい。この受樋６０は、水面を境に上下にあるように配置するとともにその全体は円周状にわたるものになっている。そして第２減衰制御筒２３上を越えてくるスカムはこの受樋６０内にせり上がりにより導入されるとともに、分離制御筒３９の内周手前一帯にくるスカムも導入されるようになる。それらの強制的な導入はスカムスクレーパ５０から二股状に垂設されたスクレーパ本体５２によりなされる。同本体５２は、図４において紙面より向こう側に回転してゆく訳であるが、その下部を同向こう側に曲げた形としておくことでその掬い部５２ａ、５２ａが滞溜スカムを掬い上げながら受樋６０内にもち込むように作用する。勿論同掬い部を５２ｂのように受樋６０の側底域に及ぶような形状にすることも自由である。スカムは出口パイプ６０ａから排出される。
尚、付加的な提案例であるが、図４のように上カバー４６に開閉点検蓋６１を備えて点検口６２を蓋設するものとし、一方、下方の第１減衰制御筒３０内の上部にカゴ体６３を装備して、ストッパ６４上で上下動可能な姿勢とすることもできる。カゴ体６３内には腐喰土等を入れておくが、これらの状況をみるため上記点検口６２を使うものである。尚、点検口６２を大きくして係員が出入り自在にすることもできる。
【００２７】
図５は付加的な提案例を示すもので、スクレーパ本体５２の後行側の面を利用してカゴ体６５を装備し、その中に臭い消しのための腐喰土などを入れておくこともできる。
【００２８】
図６は前記に対する変形実施案で、スカム受樋６０の外周側にくる分離制御筒３９の上編部分を受樋６０向きに傾く導入ガイド面、すなわち全体として円錐状面６７として形成し、それに応じてスクレーパ本体６６の形も屈曲状に構成したものである。これにより、スクレーパ本体６６により掬い上げられながら周方向にもち回されるスカム（クロスということもある）が矢印のように自動的に内向きに転回して受樋６０内にもち込まれるようになる。尚、前記円錐面は図示よりさらに上方に同様にして及ぶような形状にしてもよい。
【００２９】
【発明の効果】
請求項１記載の発明は、縦筒胴状の槽本体と、同槽本体の周胴部を通じて外部から内部に向けて延びる第１パイプと同第１パイプに連通状とされ槽本体の略中央を上方へと向けて延びる第２パイプとを備えて同槽本体内にスカム含水のような処理対象水を導入して前記第２パイプ上端の導出端口を通じて前記処理対象水を導出する導入パイプと、下端が開口状をした筒胴状のもので前記導出端口の外周に離間して同心状に配置されて導出端口からの処理対象水を受け入れてその噴き上げエネルギーをその内部域にて減衰させるとともに前記下端の開口より導出を可能とする第１減衰制御筒と、縦筒胴状をしていて前記第２パイプの外周に同心状をなしてその上部が前記減衰制御筒よりも外周側にあるように配置されるとともに上端に開口を形成してある第２減衰制御筒と、少なくとも下端が低いレベルで開口した筒胴状をしたもので前記第２減衰制御筒と前記槽本体との両者間にあるように位置する分離制御筒と、同分離制御筒の外周囲に配置されて分離制御筒の上端からの分離した水を受け入れて排除する分離水導出部とを備える一方、下方への沈澱物は排除可能とし、上方へ浮上した浮上分離物は別途排除可能に構成したことを特徴とするので、分離性能のより高いレベルへの向上を達成することのできる固液分離装置を提供することができる。
【図面の簡単な説明】
【図１】この発明の一実施形態を示す固液分離装置の中央縦断面図。
【図２】図１のＩＩ−ＩＩ線断面図。
【図３】図２のＩＩＩ−ＩＩＩ線断面図。
【図４】他の実施形態を示す一部断面図。
【図５】他の提案例を示す斜視図。
【図６】他の実施形態を示す一部断面図。
【符号の説明】
１…槽本体６…汚泥排除スクレーパ１５…導入パイプ１６…第１パイプ１７…第２パイプ２３…第２減衰制御筒２８…水面３０…第１減衰制御筒３９…分離制御筒４１…分離導出部４５…スカム掻出装置５０…スカムスクレーパ。[0001]
[Industrial application fields]
The present invention relates to a solid-liquid separator.
[0002]
[Prior art]
For example, a solid-liquid separation device that receives scum water introduced from a sedimentation basin and separates it into scum that floats and water and sludge that settles and separates them separately is well known.
[0003]
[Problems to be solved by the invention]
By the way, such a solid-liquid separation apparatus has a goal of improving the separation performance, but the conventional solid-liquid separation apparatus may not be able to obtain a separation performance anymore, and countermeasures are desired. It was rare.
[0004]
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a solid-liquid separation apparatus that can achieve an improvement in separation performance to a higher level.
[0005]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems. The invention according to claim 1 is the same as a tank body having a vertical cylindrical body and a first pipe extending from the outside to the inside through a peripheral body part of the tank body. A second pipe that communicates with the first pipe and extends upward substantially in the center of the tank main body, and introduces water to be treated, such as water containing scum, into the tank main body. An inlet pipe for leading the water to be treated through the outlet end, and a cylindrical body having an opening at the lower end, arranged concentrically spaced from the outer periphery of the outlet end and receiving the water to be treated from the outlet end A first damping control cylinder that attenuates the spray energy in its inner region and that can be derived from the opening at the lower end, and a vertical cylinder that is closed while the entire upper end is open and the lower end is passed through the second pipe First damping control cylinder A second damping control cylinder in which the lower part corresponds to the outer periphery of the second pipe and the upper part corresponds to the outer periphery of the lower half of the first damping control cylinder; A vertical cylinder body that is open and has a diameter larger than that of the second damping control cylinder, is arranged on the outer periphery of the second damping control cylinder, is concentrically arranged with the second damping control cylinder, and has an opening at the lower end. A separation control cylinder positioned lower than the lower end of the second attenuation control cylinder and having an opening at the upper end higher than the upper end of the second attenuation control cylinder in a state where a flow interval is placed between the bottom of the tank body and the outside of the separation control cylinder A separation water derivation unit that is disposed around and separates the lower end of the separation control cylinder and separates and removes the water that forms an upward flow, while allowing sedimentation in the lower direction to be eliminated and floating separation that has floated upward. The solid-liquid separation device is configured so that the object can be separately excluded, and the first pipe is a tank body. The one end protruding from the tank main body is disposed to support the tank main body and the separation control cylinder through two corresponding circumferences of the tank main body and the separation control cylinder so as to pass through the center of the cylinder, The projecting portion at the other end is closed, and the first pipe is connected to and supported by a gantry, and the second pipe rises through a midway portion of the first pipe. And
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
1 to 3 show an embodiment of the present invention. Reference numeral 1 denotes a tank main body, and the tank main body 1 is formed as a sludge guide portion 2 having a vertical round barrel shape and a lower portion thereof being narrowed. In addition, an elbow-like sludge eliminating pipe 3 is connected to the lower end of the guide portion 2 in a continuous manner.
[0007]
The sludge elimination pipe 3 is provided with a lower motor 4 and a curved sludge elimination scraper 6 is rotated continuously or periodically in the direction of the arrow as shown in FIG. The sludge that settles on the guide portion 2 is collected at the lower part of the center and guided into the sludge removal pipe 3 to be removed. A suction pump may be provided. The pump may be a screw type.
[0008]
8 is a mount. The gantry 8 includes a pedestal frame 9, a plurality of (four) internal struts 10, and external struts 11, standing up from the frame 9, and the sludge guide portion 2. The frame is an integrated frame comprising a receiving frame 12 on which the squeezed outer surface rests. In addition, as shown with a virtual line in FIG. 1, you may make it make the flow of sludge smooth by attaching the vibrator 13 to the bottom face of the sludge guide part 2. FIG.
[0009]
The tank body 1 includes an introduction pipe 15 at a lower portion thereof. The pipe 15 has an inverted T shape including a first pipe 16 and a second pipe 17, and the first pipe 16 penetrates the tank body 1 and is fixed so as to partially protrude outside. As shown in FIG. 1, a guide pipe 18 is connected to the right end of the first pipe 16 to guide water containing scum, while the left end of the first pipe 16 is detachable. It is closed by a closing plate 19.
[0010]
The second pipe 17 rises from the middle in the longitudinal direction of the first pipe 16 and extends upward substantially at the center of the tank body 1, and the treatment target water through the outlet end 20 at its upper end. Has been derived. The outlet end port 20 has an upwardly enlarged shape, but may be straight.
[0011]
A seat plate 21 is welded and fixed to the lower outer periphery of the second pipe 17, and a second damping control cylinder 23 is concentrically fixed on the seat plate 21 via a packing 22. The second damping control cylinder 23 is a cylindrical bottomed type, and is fixed to the seat plate 21 by a fastener 24 so as to be detachable. At the bottom of the second damping control cylinder 23, an elastic cushioning material 25 such as sponge or rubber is mounted and detachably fixed by another fastening device 26, while the upper end of the control cylinder 23 is The opening 27 is formed so as to be located at a level slightly lower than the water surface 28. Note that the first pipe 16 may be mounted on the external support 11.
[0012]
Reference numeral 30 denotes a first damping control cylinder. The cylinder 30 has a lid shape and a lower end having an opening 31 and is a round cylinder body having a slightly smaller diameter than the second damping control cylinder 23. Are disposed concentrically so as to be located on the inner periphery of the outlet end port 20, receive the water to be treated from the outlet end port 20, attenuate the spray energy in the inner area, and from the opening 31 at the lower end. It is configured to be able to be derived downward. The water to be treated from the opening 31 is guided into the second attenuation control cylinder 23 to obtain a further attenuation effect. The first damping control cylinder 30 and the second damping control cylinder 23 are connected by a four-way or three-way connecting member 32.
[0013]
A plurality of holes 34 are formed in the upper lid 33 of the first damping control cylinder 30, and a lower bearing 35 is fixed to the center of the upper lid 33.
[0014]
A baffle 37 is provided corresponding to the outer periphery of the upper portion of the second damping control cylinder 23 and is arranged so as to extend vertically with the water surface 28 as a boundary. A separation control cylinder 39 is provided at a location corresponding to the inner periphery of the tank body 1 on the outer periphery of the baffle 37. The separation control cylinder 39 is disposed with a high width so that the upper end protrudes from the water surface 28 and the lower end is located below the first pipe 16 of the introduction pipe 15. The separation control cylinder 39 is located between the second attenuation control cylinder 23 and the tank body 1.
[0015]
On the outer periphery of the upper part of the separation control cylinder 39, a separation water lead-out part 41 that is square-shaped and extends upward is integrally welded. The separated water outlet 41 receives the separated water that overflows via the separated water outlet passage 42 formed between the separation control cylinder 39 and the tank body 1 and discharges it from the drain pipe 43. Yes. The separation water lead-out portion 41 has a base portion 41a that is easily welded and fixed to the outer periphery of the tank body 1 from the outside. The upper end of the tank body 1 is set lower than the water surface 28. Further, the second damping control cylinder 23, the baffle 37, the separation control cylinder 39, and the tank body 1 are connected and fixed to each other by a connecting material 32.
[0016]
A first scum outlet 37a cut out lower than the water surface 28 is formed at a specific portion of the baffle 37, and a notched second scum flow is also formed at a corresponding portion of the separation control cylinder 39. The outlet 39 a is formed to be lower than the water surface 28. A scum flow channel 44 is formed so as to guide the scum from the second scum outlet 39a in the outer diameter direction, and has a bowl shape so that separated water does not enter. A conveyor-type scum scraping device 45 is connected to the end of the scum flow path 44.
[0017]
The separated water lead-out portion 41 has a round body shape, and an upper cover 46 is detachably mounted on the upper end thereof, and reinforcing members 47 are appropriately disposed. A motor 48 with a speed reducer is installed on the upper cover 46, the lower end of the drive shaft 49 is supported by the lower bearing 35, and the scum scraper 50 rotates around the drive shaft 49. It is provided freely.
[0018]
The scum scraper 50 includes an arm 51 and a rubber scraper body 52, and is curved so as to sequentially guide the scum from the inside outward. As shown in FIG. 1, the scraper main body 52 scrapes the scum that floats on the water surface between the second damping control cylinder 23 and the baffle 37 and between the baffle 37 and the separation control cylinder 39 in the circumferential direction. Two scum outlets 37a and 39a are guided.
[0019]
In addition, 53 shown with a virtual line in FIG. 1 is a valve, and is provided in the branch pipe 54 from the sludge removal pipe 3, and by opening the valve 53, it is led from the pipe 54 to the sludge treatment part 55 and there is humus soil or the like. What is processed by this processing means is reintroduced into the introduction pipe 15 or the like, as indicated by the arrow, as indicated by the arrow, where sludge settles again.
[0020]
Further, as shown in FIG. 1, an aeration pipe 57 is provided below and above the introduction pipe 15 so as to promote the separation action associated with the floating.
[0021]
In addition, the guide plate 58 may be provided in the first pipe 16 as indicated by an imaginary line in FIG. 1 so that all the water containing scum flows into the second pipe 17.
[0022]
As shown in FIG. 1, the scum water that has been guided from the guide pipe 18 as indicated by an arrow A flows into the second pipe 17 from the first pipe 16 through the path indicated by the arrow B and becomes an upward flow from the outlet end 20. It flows out. The scum water content from the same port 20 flows into the first damping control cylinder 30 as indicated by the arrow C. However, since the scum water content already exists in the previous stage, the energy of the scum water is attenuated here. Then, the scum water content attenuated in the first attenuation control cylinder 30 is still in a mixed state and becomes a downward flow through the opening 31 as indicated by an arrow D, but immediately in the second attenuation control cylinder 23 having a large diameter. As you enter, you will slow down and become static.
[0023]
Against this background, the flow of the arrow D gradually becomes a gentle flow, and the first stage separation action is performed here. The scum is separated with water and sludge as shown by the arrow E while separating. . In this state, the flow is not completely static, but after the upper end of the second damping control cylinder 23 is exceeded, full-scale static flow and separation action are performed. The sludge remains on the top and naturally descends as shown by the arrow F together with the separated water.
[0024]
Then, the F stream is divided into a sludge G stream and a separated water I stream, and the G stream is removed by the sludge removal scraper 6, and the I stream passes the lower end of the separation control cylinder 39 and is separated water. It enters into the lead-out path 42 and becomes an upward flow and is discharged from the separation / lead-out section 41 through the drain pipe 43 as indicated by an arrow J.
[0025]
On the other hand, the scum that floats on the water surface as shown by the arrow H or the scum that exceeds the baffle 37 gathers in the inner circumferential band of the separation control cylinder 39 and is pushed in the outer diameter direction by the rotating scum scraper 50. The scum is discharged as a concentrated component by the scum raking device 45 through the first scum outlet 37a and the second scum outlet 39a that are opened in the direction of the arrow 2 and the second scum outlet 39a.
[0026]
As in the other embodiment shown in FIG. 4, the intermediate baffle 37 may be omitted, and a scum receptacle 60 having a V-shaped (U or bowl-shaped) cross section may be installed there. The receptacle 60 is arranged so as to be above and below the water surface as a boundary, and the whole of the receptacle 60 extends in a circumferential shape. The scum that passes over the second damping control cylinder 23 is introduced into the receiving rod 60 by being raised, and the scum that is located in the entire front area of the separation control cylinder 39 is also introduced. These forced introductions are made by a scraper body 52 that is suspended from the scum scraper 50 in a bifurcated manner. The main body 52 is rotated away from the paper surface in FIG. 4, but the lower part is bent to the opposite side so that the scooping parts 52a and 52a scoop up the stagnation scum. It acts so as to be pushed into the receptacle 60. Of course, it is also possible to make the scooping part into a shape that extends to the side bottom region of the receiving part 60 as in 52b. The scum is discharged from the outlet pipe 60a.
As an additional proposed example, as shown in FIG. 4, the upper cover 46 is provided with an open / close inspection lid 61 and the inspection port 62 is covered, while the upper portion in the lower first damping control cylinder 30 is provided. It is also possible to equip the basket body 63 with a posture capable of moving up and down on the stopper 64. The carcass 63 is filled with eroded soil or the like, and the inspection port 62 is used to see these situations. In addition, the inspection port 62 can be enlarged so that an attendant can freely enter and exit.
[0027]
FIG. 5 shows an example of an additional proposal, in which a cage body 65 is equipped using the surface on the rear side of the scraper main body 52, and erosion soil for removing odors is put therein. You can also.
[0028]
FIG. 6 shows a modified embodiment of the above, in which the upper knitted portion of the separation control cylinder 39 on the outer peripheral side of the scum receiving member 60 is formed as an introduction guide surface inclined toward the receiving member 60, that is, as a conical surface 67 as a whole. Accordingly, the shape of the scraper body 66 is also bent. As a result, the scum (sometimes referred to as a cross) that is swung up by the scraper body 66 and rotated in the circumferential direction automatically turns inward as indicated by an arrow and is inserted into the receiving rod 60. Become. It should be noted that the conical surface may be shaped so as to extend further upward in the drawing.
[0029]
【The invention's effect】
According to the first aspect of the present invention, there is provided a tank body having a vertical cylindrical body, a first pipe extending from the outside to the inside through a peripheral body portion of the tank body, and being communicated with the first pipe. An introduction pipe that includes a second pipe that extends toward the top, introduces the treatment target water such as water containing scum into the tank body, and leads the treatment target water through the outlet end of the upper end of the second pipe; Is a cylindrical body having an opening shape, and is arranged concentrically apart from the outer periphery of the outlet end port, receives water to be treated from the outlet end port, attenuates its spray energy in the inner area, and lowers the lower end. A first damping control cylinder that can be led out from the opening of the first pipe, and a vertical cylinder body that is concentric with the outer periphery of the second pipe and has an upper part on the outer peripheral side of the attenuation control cylinder. Placed and shaped with an opening at the top A second damping control cylinder, and a separation control cylinder that is located between the second damping control cylinder and the tank body, with a cylindrical body having at least a lower end opened at a low level, A separation water derivation unit that is disposed around the outer periphery of the separation control cylinder and accepts and removes the separated water from the upper end of the separation control cylinder, while allowing sediments below to be removed, and Since the separated product is configured such that it can be separately excluded, it is possible to provide a solid-liquid separation device that can achieve an improvement to a higher level of separation performance.
[Brief description of the drawings]
FIG. 1 is a central longitudinal sectional view of a solid-liquid separator showing an embodiment of the present invention.
2 is a cross-sectional view taken along the line II-II in FIG.
3 is a cross-sectional view taken along line III-III in FIG.
FIG. 4 is a partial cross-sectional view showing another embodiment.
FIG. 5 is a perspective view showing another proposed example.
FIG. 6 is a partial cross-sectional view showing another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Tank main body 6 ... Sludge removal scraper 15 ... Introduction pipe 16 ... 1st pipe 17 ... 2nd pipe 23 ... 2nd damping control cylinder 28 ... Water surface 30 ... 1st damping control cylinder 39 ... Separation control cylinder 41 ... Separation deriving part 45 ... Scum scraping device 50 ... Scum scraper.

Claims

A tank body in the form of a vertical cylinder, a first pipe extending from the outside to the inside through a peripheral body portion of the tank body, and a second pipe that communicates with the first pipe and extends upward substantially at the center of the tank body A pipe that introduces water to be treated such as water containing scum into the tank body and leads the water to be treated through a lead-out end of the upper end of the second pipe, and a cylindrical body having an opening at the lower end. It is arranged concentrically apart from the outer periphery of the outlet end port, accepts water to be treated from the outlet end port, attenuates its spray energy in the inner area, and allows it to be derived from the lower end opening. A first damping control cylinder, and a cylindrical body having a cylindrical body having a larger diameter than the first damping control cylinder and closed at a lower end through the second pipe and having a lower end passing through the second pipe; The upper part of the first damping control cylinder A second damping control cylinder arranged corresponding to the outer periphery of the lower half, and a vertical cylinder body having a larger diameter than that of the second damping control cylinder while being open at the top and bottom as a whole. The lower end opening is positioned lower than the lower end of the second damping control cylinder in a state where the lower end opening is placed concentrically with the second damping control cylinder and a flow interval is provided between the bottom of the tank body and the bottom opening. A separation control cylinder positioned higher than the upper end of the second damping control cylinder, and a separation water that is disposed around the outer periphery of the separation control cylinder and that separates the lower end of the separation control cylinder and receives and removes water that becomes an upward flow A solid-liquid separation device comprising a lead-out portion, wherein sediments downward can be excluded, and floating separations floating upward can be separately excluded, wherein the first pipe is the center of the tank body Pass through the corresponding two places of the tank body and separation control cylinder to pass through the tank The one end protruding from the tank body is the introduction side of the water to be treated and the protruding portion at the other end is closed, and the first pipe is attached to the gantry. A solid-liquid separation device characterized in that the second pipe is connected and supported, and the second pipe communicates via a midway portion of the first pipe.