JPH0645604U - Two-liquid separation device for mixed oil-water - Google Patents
Two-liquid separation device for mixed oil-waterInfo
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- JPH0645604U JPH0645604U JP2357392U JP2357392U JPH0645604U JP H0645604 U JPH0645604 U JP H0645604U JP 2357392 U JP2357392 U JP 2357392U JP 2357392 U JP2357392 U JP 2357392U JP H0645604 U JPH0645604 U JP H0645604U
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- liquid
- oil
- water
- separation tank
- specific gravity
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Abstract
(57)【要約】
【目的】 大量の油に対して小量の水が混入していた
り、界面活性剤によって油分が乳化している場合など、
二液それぞれの液体粒子の結合が極めて強い混合液から
精製液を連続的且つ効率良く得ることができる二液分離
装置を提供せんとするものである。
【構成】 電圧が印加された複数枚の荷電板が対向配置
され装置外部から連続供給される二液混合液の原液を前
記荷電板間において上方から下方に向けて下向流で流し
て一次処理する下向流分離槽と、前記下向流分離槽と下
部で連通し当該連通路を通じて導入された一次処理液を
下方から上方へ浮上させながら二次処理を行う上向流分
離槽とを有し、前記上向流分離槽における上部側には分
離された低比重液体の排出口を設け且つ底部側には分離
された高比重液体の排出口を設けてなる油水混合液等の
二液分離装置である。
(57) [Summary] [Purpose] When a small amount of water is mixed with a large amount of oil, or when oil is emulsified by a surfactant, etc.
An object of the present invention is to provide a two-liquid separation device capable of continuously and efficiently obtaining a purified liquid from a mixed liquid in which liquid particles of each of the two liquids are extremely strongly bonded. [Structure] A plurality of charge plates to which a voltage is applied are arranged to face each other, and a stock solution of a two-liquid mixed liquid continuously supplied from the outside of the apparatus is flowed in a downward flow between the charge plates in a downward flow to perform a primary treatment. And a downward-flow separation tank that communicates with the downward-flow separation tank at the bottom and performs a secondary treatment while floating the primary treatment liquid introduced through the communication passage from the lower side to the upper side. Then, the two-liquid separation of an oil-water mixed liquid, etc., in which an outlet for the separated low specific gravity liquid is provided on the upper side of the upflow separation tank and an outlet for the separated high specific gravity liquid is provided on the bottom side It is a device.
Description
【0001】[0001]
本考案は、例えば油水混合液のように比重差を有する二液の混合液体からそれ ぞれの精製液を分離する装置に関し、特に比較的大量の油に対し少量の水が連続 的に混入するような場合や水に浮いた油が界面活性剤の混入によって乳化してい るような場合など二液の懸濁の程度が酷く二液粒子の結合の度合が強い混合液を 対象とした二液分離装置に関する。 The present invention relates to a device for separating a refined liquid from a mixed liquid of two liquids having a difference in specific gravity, such as an oil-water mixed liquid, and particularly a small amount of water is continuously mixed with a relatively large amount of oil. In such cases as when the oil floating in water is emulsified by the mixture of surfactants, the two liquids are used for mixed liquids in which the degree of suspension of the two liquids is severe and the degree of bonding of the two liquid particles is strong. Separation device
【0002】[0002]
油水混合液等の二液混合液からそれぞれの精製液を分離する装置としては様々 なものがあるが、このような中でも特に有効なものとして本考案者が特願平2− 162361号として提案したものがある。これは図6に示すように槽内空間を 仕切板aで油水分離空間bと分離水収容空間cとに二分した上面開放型の分離槽 dを設け、仕切板aの下部には両空間内の流通を可能とする連通路eを形成し、 且つ油水分離空間bを構成する側壁上部に排油口fを設けるとともに、電圧を印 加した複数枚の荷電板gを前記油水分離空間b内に対向配設した構成である。そ して、この装置では、電界の作用する油水分離空間bに原液を下方から供給し、 当該油水分離空間b内において、水滴粒子から分離させた油滴粒子を浮上させな がら粗粒化し、当該油水分離空間上層部に形成される浮上油層hを油水分離空間 側壁に形成された排油口fから直接回収するものである。また分離後の水は隣接 する分離水収容空間cに流入させ、当該分離水収容空間c内に満たされた分離水 を隣接するタンクiに導入したのち、タンク下部から水分を排出するものである 。 There are various devices for separating each purified liquid from a two-liquid mixed liquid such as an oil-water mixed liquid, and the present inventor has proposed it as Japanese Patent Application No. Hei 2-162361 as a particularly effective device. There is something. As shown in FIG. 6, an upper open type separation tank d is provided, which divides the tank interior space into an oil / water separation space b and a separated water storage space c by a partition plate a. Is formed in the oil-water separation space b while a discharge passage f is formed in the upper part of the side wall which forms the oil-water separation space b. Is arranged so as to face each other. Then, in this device, the undiluted solution is supplied from below to the oil / water separation space b in which the electric field acts, and in the oil / water separation space b, the oil droplet particles separated from the water droplet particles are made coarse while floating. The floating oil layer h formed in the upper layer portion of the oil / water separation space is directly recovered from the oil discharge port f formed in the side wall of the oil / water separation space. The separated water is allowed to flow into the adjacent separated water storage space c, the separated water filled in the separated water storage space c is introduced into the adjacent tank i, and then the water is discharged from the lower portion of the tank. .
【0003】[0003]
前記装置によれば二液混合液から精製液の分離を効率良く行えるのであるが、 その処理対象となる二液混合液の種類に制限があった。即ち、前記装置は、大量 の水に少量の油が混入している場合等、低比重液の比率が高比重液の比率に比べ て小さい場合には効率良く精製液が得られるものの、大量の油に少量の水が混入 している場合等、低比重液の比率が高比重液の比率に比べて大きい場合には、低 比重液体粒子と高比重液体粒子との結合が強固であることからその分離効果はや や不十分であった。 According to the above apparatus, the purified liquid can be efficiently separated from the two-liquid mixed liquid, but the type of the two-liquid mixed liquid to be treated is limited. That is, the above-mentioned apparatus can efficiently obtain a purified liquid when the ratio of the low specific gravity liquid is smaller than that of the high specific gravity liquid, such as when a large amount of water is mixed with a small amount of oil. When the ratio of the low specific gravity liquid is higher than that of the high specific gravity liquid, such as when a small amount of water is mixed with oil, the low specific gravity liquid particles and the high specific gravity liquid particles are strongly bonded. The separation effect was somewhat insufficient.
【0004】 また、二液の混合比率において高比重側液体の比率が高い場合でも、例えば、 水に浮いた油が界面活性剤の混入によって乳化しているような場合など二液の懸 濁の程度が酷く二液粒子の結合の度合が強い混合液を対象とした場合にも、その 分離効果はやや不十分であった。本考案はかかる現況に鑑みてなされたものであ り、大量の油に対して小量の水が混入していたり、界面活性剤によって油分が乳 化していたりする場合など、二液それぞれの液体粒子の結合が極めて強い混合液 を対象とした二液分離装置を提供せんとするものである。Further, even when the ratio of the high-density liquid is high in the mixing ratio of the two liquids, for example, when the oil floating in water is emulsified by the mixture of the surfactant, the suspension of the two liquids Even in the case of a mixed solution having a severe degree and a strong degree of bonding of two liquid particles, the separation effect was slightly insufficient. The present invention has been made in view of the present situation, and it is a liquid of each of the two liquids, such as when a small amount of water is mixed with a large amount of oil or the oil is emulsified by a surfactant. The purpose of the present invention is to provide a two-liquid separating device for a mixed liquid having extremely strong particle binding.
【0005】[0005]
本考案者は、かかる課題を解決するために、槽内において混合液を流す方向、 原液の流入口及び分離後の精製液の排出口の配置位置について鋭意検討を重ねた 結果、本考案に達したものである。かかる課題を解決した本考案は、電圧が印加 された複数枚の荷電板が対向配置され装置外部から連続供給される二液混合液の 原液を前記荷電板間において上方から下方に向けて下向流で流して一次処理する 下向流分離槽と、前記下向流分離槽と下部で連通し当該連通路を通じて導入され た一次処理液を下方から上方へ浮上させながら二次処理を行う上向流分離槽とを 有し、前記上向流分離槽における上部側には分離された低比重液の排出口を設け 且つ底部側には分離された高比重液の排出口を設けてなることを特徴としている 。 In order to solve such problems, the present inventor has earnestly studied the direction of flowing the mixed solution in the tank, the arrangement position of the inflow port of the undiluted solution, and the discharge port of the purified solution after separation, and as a result, the present invention was achieved. It was done. The present invention, which has solved such a problem, has a plurality of charge plates to which a voltage is applied facing each other, and a stock solution of a two-liquid mixture continuously supplied from the outside of the apparatus is directed downward from above between the charge plates. Downward flow separation tank that performs primary treatment by flowing in a downward flow, and secondary treatment that floats the primary treatment liquid that is in communication with the downward flow separation tank at the bottom and is introduced through the communication passage from above to above. And a discharge port for the separated low specific gravity liquid on the upper side and a discharge port for the separated high specific gravity liquid on the bottom side. It has a feature.
【0006】 上向流分離槽内に対向配置する荷電板の配置態様は処理対象液の種類によって 適宜選択されるが、例えば垂直方向に縦設することが考慮される。The arrangement of the charging plates facing each other in the upflow separation tank is appropriately selected depending on the type of the liquid to be treated, but it is considered that the charging plates are arranged vertically, for example.
【0007】 また、荷電による二液分離効果を高めるために、荷電板間には多電極効果を有 する多孔性の誘電体を介在させることが好ましい。荷電電圧は処理対象液の種類 及び濃度によって適宜選択され、直流、交流及び両者の重畳電圧のいずれもが採 用可能であるが、例えば交流電圧の場合、0.5V〜3000V/cmの範囲内 から適宜選択される。Further, in order to enhance the effect of separating two liquids due to charging, it is preferable to interpose a porous dielectric having a multi-electrode effect between the charging plates. The charging voltage is appropriately selected according to the type and concentration of the liquid to be treated, and either direct current, alternating current or superimposed voltage of both can be adopted. For example, in the case of alternating current voltage, it is within the range of 0.5V to 3000V / cm. Is selected as appropriate.
【0008】 また、原液タンク上層に浮遊する大量の高比重液に少量の低比重液が分散した 二液混合液を回収する手段としては、例えば120゜角で配置した3本の支柱に フロートを取りつけて構成したフロートサクションを用いることが好ましい。Further, as a means for collecting a two-liquid mixed solution in which a small amount of low specific gravity liquid is dispersed in a large amount of high specific gravity liquid floating in the upper layer of the stock solution tank, for example, a float is provided on three columns arranged at 120 ° angle. It is preferable to use the float suction configured to be attached.
【0009】[0009]
このような構成の二液分離装置の動作態様は次の如くである。ここでは、油水 混合液を対象にして説明するが、本願の対象は比重差のある二液の混合液であれ ば他のものについても適用され、その動作態様は油水混合液を分離する動作態様 とほぼ同様である。 先ず、下向流分離槽に対して処理対象である油水混合液の原液が、下向流分離 槽上部側より注がれる。この原液は大量の油液に少量の水分が分散した二液混合 液であって懸濁の程度が重度であり、二液それぞれの液体粒子は極めて微細で且 つ強く結合している。 The operation mode of the two-liquid separation device having such a configuration is as follows. Here, an oil-water mixed liquid will be described as an object, but the subject of the present application is also applied to other liquids having different specific gravities, and its operation mode is an operation mode for separating an oil-water mixed liquid. Is almost the same as. First, the stock solution of the oil-water mixture to be treated is poured into the downward flow separation tank from the upper side of the downward flow separation tank. This stock solution is a two-liquid mixture in which a small amount of water is dispersed in a large amount of oil liquid, and the degree of suspension is severe, and the liquid particles of each of the two liquids are extremely fine and strongly bonded.
【0010】 上向流分離槽は隣接配置された下向流分離槽と下部において連通し、且つ上向 流分離槽には排出口が設けられていることから、上向流分離槽内で上方から下方 へ向かう流れが発生する。そして油水混合液は、電圧が印加された荷電板間を下 向流で通過するが、このあいだ油水混合液には比重差による物理的分離作用に加 えて電界が作用し、この電界作用によって水滴粒子のそれぞれが保有するゼータ ー電位が中和させられ、水滴表面に作用していた電気二重層による反発力が弱ま る結果、分子間引力による水滴粒子の凝集粗大化現象が徐々に進行して水滴粒子 の沈降が徐々に行われ油水の分離が進行する。そしてこの過程で水液より相対的 に上方位置に集積し始めた油液がその重量及び下向流の流れによって少量の水液 を更に下方に押し下げらる。下方に押し下げられた水液は油液に押されながら油 液とともに隣接する上向流分離槽に移ったのち、当該槽内において下から上へ向 かう上向流の流れにそって二次処理としての比重差による油水分離作用を受け、 当該槽内上層に浮上油層を形成するとともに下層には比較的純度の高い水層を形 成する。そして分離後の水は油液に押されて上向流分離槽底部側に設けた排水レ ベルの調整ができる排水口より装置外部に排出され、他方、分離後の油液は水液 を排水口から押し出しながら上向流の流れに沿って上方へ至り、上向流分離槽上 部側に設けられた排油口より連続的に回収される。本願考案が対象とする懸濁の 程度が重度の混合液では、下向流分離槽内における処理だけでは油水の分離の程 度はいまだ不十分であるが、本考案では下向流分離槽における一次処理に続いて 上向流分離槽でも二次処理としての油水分離をおこなっているうえに一次処理槽 としての機能を有する下向流分離槽内においては、液体の流れと高比重液である 水液の下降沈降する方向が同じであるため優れた分離効果が実現でき、精製度の 高い油液の回収が可能である。Since the upflow separation tank communicates with the adjacent downflow separation tank in the lower part, and the upflow separation tank is provided with a discharge port, the upflow separation tank is located above the upflow separation tank. A downward flow is generated. Then, the oil-water mixture passes downward between the charged plates to which a voltage is applied, and during this time, an electric field acts on the oil-water mixture in addition to the physical separation action due to the difference in specific gravity. As a result, the zeta potential possessed by each of the water droplets is neutralized, and the repulsive force due to the electric double layer acting on the water droplet surface is weakened.As a result, the aggregation and coarsening phenomenon of water droplet particles due to the intermolecular attractive force gradually progresses. The settling of water droplets is gradually carried out, and the separation of oil water progresses. Then, in this process, the oil liquid, which has begun to accumulate at a position relatively higher than the water liquid, pushes a small amount of water liquid further downward due to its weight and downward flow. The water liquid pushed downward moves to the adjacent upflow separation tank together with the oil liquid while being pushed by the oil liquid, and then the secondary treatment is performed in the tank along the upward flow from the bottom to the top. As a result, the floating oil layer is formed in the upper layer of the tank and the water layer of relatively high purity is formed in the lower layer. The separated water is pushed by the oil liquid and discharged to the outside of the equipment through a drainage port provided on the bottom side of the upflow separation tank that allows adjustment of the drainage level, while the separated oil liquid drains the water liquid. While pushing out from the mouth, it reaches upward along the upward flow and is continuously collected from the oil discharge port provided on the upper side of the upward flow separation tank. In the case of a mixed liquid with a high degree of suspension, which is the subject of the present invention, the degree of oil-water separation is still insufficient only by the treatment in the downflow separation tank. After the primary treatment, the upflow separation tank also separates oil and water as the secondary treatment, and in the downflow separation tank that functions as the primary treatment tank, there is a liquid flow and high specific gravity liquid. Since the descending and settling directions of the water liquid are the same, an excellent separation effect can be realized and highly refined oil liquid can be recovered.
【0011】 また荷電板間に多電極効果を有する多孔性の誘電体を介在させたり、二次処理 槽としての上向流分離槽内にも、下向流分離槽と同様、電圧が印加された複数枚 の荷電板を垂直方向に縦設した場合は、より一層、含水度の低い精製油が効率的 に回収できる。In addition, a voltage is applied between the charge plates in the same manner as in the downflow separation tank, by interposing a porous dielectric having a multi-electrode effect or in the upflow separation tank as the secondary treatment tank. When a plurality of charged plates are installed vertically, the refined oil with a lower water content can be efficiently collected.
【0012】[0012]
次に本考案の詳細を図示した実施例に基づき説明する。図1(イ)は本考案の 第1実施例を示す縦断面説明図であり、図1(ロ)は同実施例の横断面説明図で ある。 図中Aは上面開放型の箱状の槽体であり、該槽体Aの中央にはその下部に連通 路1となる間隙を設けた仕切板2が垂下されており、槽体A内空間を下向流分離 槽A1と上向流分離槽A2とに二分している。 Next, the details of the present invention will be described based on the illustrated embodiment. FIG. 1 (a) is a longitudinal sectional explanatory view showing a first embodiment of the present invention, and FIG. 1 (b) is a lateral sectional explanatory view of the same embodiment. In the figure, A is a box-shaped tank body having an open top, and a partition plate 2 having a gap serving as a communication path 1 is hung at the center of the tank body A, and the space inside the tank body A is suspended. Is divided into a downward flow separation tank A1 and an upward flow separation tank A2.
【0013】 下向流分離槽A1の上部位置には油水混合液の原液を供給するための原液流入 口3が設けられている。原液の流入は自然流下による他、ポンプを用いることも 採用されるが、ポンプを用いる場合は油水の攪拌を避けるために攪拌効果の少な いものを用いる必要がある。 図中4a,4bとして示すものは下向流分離槽A1内に水平状態で互いに対設 された荷電板であり、一方の荷電板4aはアース極で槽体Aと同電位となし、他 方の荷電板4bは荷電極となして前記アース極である荷電板4aとの間に0.5 〜3000V/cmの交流電圧を荷電源5から供給印加している。印加電圧とし て交流電圧を選んだのは電蝕を避ける為であるが、油水混合液の導電性が高い場 合は直流電圧とすることもできる。電圧の大きさは油水混合液の状態によって適 宜選択され、一般的には油滴粒子が小さいほど印加電圧は高くする必要があり、 例えば油水混合液がエマルジョン化しているときは、500〜3000V/cm の高電圧を印加することが好ましい。また荷電板4bと槽体を構成する外板6と の間には絶縁板7を配置して両者間を電気的に絶縁している。A stock solution inlet 3 for supplying a stock solution of an oil-water mixture is provided at an upper position of the downflow separation tank A1. The undiluted solution is introduced by gravity flow, and it is also possible to use a pump. However, when using a pump, it is necessary to use one with a small stirring effect in order to avoid stirring oil and water. In the figure, reference numerals 4a and 4b denote charging plates horizontally opposed to each other in the downflow separation tank A1. One charging plate 4a is a ground electrode and has the same potential as the tank A, and the other is the other. The charging plate 4b serves as a load electrode and supplies an AC voltage of 0.5 to 3000 V / cm from the charging power source 5 between the charging plate 4a and the charging plate 4a serving as the earth electrode. The AC voltage was selected as the applied voltage in order to avoid electrolytic corrosion, but it can also be DC voltage if the oil-water mixture has high conductivity. The magnitude of the voltage is appropriately selected depending on the state of the oil-water mixture, and generally, the smaller the oil droplet particles, the higher the applied voltage needs to be. For example, when the oil-water mixture is emulsified, 500 to 3000 V is applied. It is preferable to apply a high voltage of / cm 2. Further, an insulating plate 7 is arranged between the charging plate 4b and the outer plate 6 constituting the tank body to electrically insulate the both.
【0014】 上向流分離槽A2は、前記下向流分離槽A1から導入した一次処理した油水混 合液に対して、二次処理としての比重差による分離を行うとともに分離後の精製 液の回収を行うための空間である。上向流分離槽A2の上部には浮上油を回収す るための排油樋8が設けられ、他方、当該槽内における下部側からは上方へ延び る排水パイプ9が連設されている。排油樋8は上向流分離槽A2上層に集積した 浮上油を自然排出するもので、高さ方向に移動可能に設けられ、その高さを適宜 調整することで浮上油の回収レベルを調整できるように構成されている。また排 水パイプ9としてはフレキシブルパイプが用いられ、パイプ先端口10の高さ位 置を変えることによって排水レベルを調整できるように構成されている。The upward flow separation tank A2 separates the oil-water mixed liquid that has been subjected to the primary treatment introduced from the downward flow separation tank A1 by the difference in specific gravity as the secondary treatment, and also provides the purified liquid after the separation. It is a space for collection. An upper part of the upflow separation tank A2 is provided with an oil drain gutter 8 for collecting floating oil, and a drain pipe 9 extending upward from the lower part of the tank is continuously provided. The oil drain gutter 8 is for naturally discharging the floating oil accumulated in the upper layer of the upward flow separation tank A2, is provided so as to be movable in the height direction, and adjusts the height appropriately to adjust the recovery level of the floating oil. It is configured to be able to. A flexible pipe is used as the drainage pipe 9, and the drainage level can be adjusted by changing the height position of the pipe tip port 10.
【0015】 また槽体底面における下向流分離槽A1と上向流分離槽A2との境界付近には 水溜め用仕切板11が立起状態で設けられている。この水溜め用仕切板11は本 装置始動時に、下向流分離槽A1側において当該水溜め用仕切板11の上縁まで 水を満たしておくことにより、始動直後に下向流分離槽A1内に原液を投入した 場合でも、排水パイプ9から原液が直接排出されないようにするためのものであ り、その高さは適宜設定される。また、槽体A下面における四隅には高さ調整用 のレベル調整器12が取付けられ、各レベル調整器12を個別に調節することに より槽体Aを水平に保てるように構成されている。A partition plate 11 for water storage is provided in a standing state near the boundary between the downward flow separation tank A1 and the upward flow separation tank A2 on the bottom surface of the tank body. This water storage partition plate 11 is filled with water to the upper edge of the water storage partition plate 11 on the side of the downflow separation tank A1 at the time of starting the present device, so that the inside of the downflow separation tank A1 immediately after the start. This is to prevent the stock solution from being directly discharged from the drainage pipe 9 even when the stock solution is poured into the tank, and its height is set appropriately. Further, level adjusters 12 for height adjustment are attached to the four corners on the lower surface of the tank A, and the tank A can be kept horizontal by individually adjusting each level adjuster 12.
【0016】 図2(イ),(ロ)は本考案の第2実施例である。この実施例では下向流分離 槽A1内に設ける荷電板4a′,4b′の配設方向を垂直方向としている。2A and 2B show a second embodiment of the present invention. In this embodiment, the charging plates 4a 'and 4b' provided in the downflow separation tank A1 are arranged in the vertical direction.
【0017】 図3(イ),(ロ)は本考案の第3実施例であり、下向流分離槽A1内に荷電 板4a,4bを横設するとともに上向流分離槽A2内にも荷電板13a,13b を配置し、当該13a,13bに前記荷電源5により電位を与えた場合である。 図4(イ),(ロ)は本考案の第4実施例であり、下向流分離槽A1及び上向流 分離槽A2に配設する荷電板の方向を共に垂直方向に縦設した場合である。3 (a) and 3 (b) show a third embodiment of the present invention, in which the charging plates 4a and 4b are provided side by side in the downflow separation tank A1 and also in the upflow separation tank A2. This is the case where the charge plates 13a and 13b are arranged and a potential is applied to the 13a and 13b by the loading power source 5. FIGS. 4 (a) and 4 (b) show a fourth embodiment of the present invention, in which the charging plates disposed in the downward flow separation tank A1 and the upward flow separation tank A2 are both vertically installed. Is.
【0018】 上記した実施例では荷電板は単に対設したのみであるが、荷電板間には多電効 果を有する多孔性又は網状体等の誘電体を介在させて両電極間に無数の電極を形 成したのと同じ効果を実現することもできる。In the above-mentioned embodiments, the charging plates are simply oppositely arranged, but a dielectric material such as a porous material or a net-like body having a multi-electric effect is interposed between the charging plates, and a myriad of electrodes are provided. It is also possible to achieve the same effect as forming the electrode.
【0019】 また図示しない原液タンクからの原液としての浮上油の回収方法は適宜採用し うるが、例えば図5(イ),(ロ)で示されるようなフロートサクションを用い ることも可能である。このフロートサクション14は互いに120°の角度を有 して配置した3本の支持棒15,15,15にフロート16,16,16を取り つけ、且つ3本の支持棒15,15,15の交点位置に他端がサクションホース 17に繋がる吸い込み口18を位置づけた構成である。このフロートサクション 14は油水界面を基準として吸い込み口18の設定高さを調整することが可能で 、油面X1の下方に位置する油水界面X2の上下動に追随して浮上することがで きる。A method of collecting floating oil as a stock solution from a stock solution tank (not shown) can be appropriately adopted, but it is also possible to use a float suction as shown in FIGS. 5 (a) and 5 (b), for example. . The float suction 14 has three support rods 15, 15, 15 which are arranged at an angle of 120 ° to each other, and the floats 16, 16, 16 are attached to the support rods 15, 15, 15 at the intersections of the three support rods 15, 15, 15. The suction port 18 whose other end is connected to the suction hose 17 is positioned at the position. The float suction 14 can adjust the set height of the suction port 18 on the basis of the oil / water interface, and can float following the vertical movement of the oil / water interface X2 located below the oil surface X1.
【0020】 このような構成の本装置の作動態様は次の如くである。ここでは、図1で示し 実施例のものを中心にして説明するが、他の実施例装置についてもその作動態様 はほぼ同様である。また、ここでは油水混合液を対象にして説明するが、本願の 対象は比重差のある二液の混合液であれば他のものについても適用され、例えば 少量のフロンが混入している水に対しても適用できる。 始動時には槽体A底部において水溜め用仕切板11で仕切られた下向流分離槽 A1側の底部空間に水を満たしておく。この水は、本装置の始動と同時に下向流 分離槽A1に原液を投入したときに、投入された原液が多い場合でも、その原液 が排水パイプ9から排出されないようにする役目をはたす。 本装置の始動と同時又は始動前に下向流分離槽A1に対して処理対象である油 水混合液の原液が、下向流分離槽A1の上部側より注がれる。原液は徐々に流入 させることも、あるいは一度に大量に流入させてもよい。原液は最終的には図中 Pで示される水準まで満たされるが、最初からこの水準まで原液を投入すると、 排水パイプ9から原液が流出するおそれがあるので、油水分離が進行していない 初期段階では液面は前記水準Pよりやや下方に位置づける。The operation mode of the present apparatus having such a configuration is as follows. Here, the description will be given centering on the embodiment shown in FIG. 1, but the operation modes of the other embodiment devices are substantially the same. Further, although the description will be made here for the oil-water mixed liquid, the subject of the present application is also applied to other liquids as long as it is a mixed liquid of two liquids having different specific gravities, for example, for water mixed with a small amount of Freon. It can also be applied to. At the time of starting, the bottom space on the side of the downward flow separation tank A1 partitioned by the water storage partition plate 11 at the bottom of the tank A is filled with water. This water plays a role of preventing the undiluted solution from being discharged from the drainage pipe 9 when the undiluted solution is introduced into the downflow separation tank A1 at the same time when the present apparatus is started, even if a large amount of the undiluted solution is introduced. Simultaneously with or before the start-up of the present apparatus, the stock solution of the oil-water mixture to be treated is poured into the downward flow separation tank A1 from the upper side of the downward flow separation tank A1. The stock solution may be introduced gradually or in large quantities at one time. The stock solution will eventually be filled to the level indicated by P in the figure. However, if the stock solution is poured to this level from the beginning, the stock solution may flow out from the drain pipe 9, so the oil / water separation is not progressing in the initial stage. Then, the liquid surface is positioned slightly below the level P.
【0021】 下向流分離槽A1内に流入した油水混合液は当該槽内で上方から下方へ向かっ て流れ、荷電板4a,4b間を迂回しながら下向流で通過するが、この過程で油 水混合液は比重差による物理的分離作用に加えて、電界作用を受ける。この電界 作用により水滴粒子のそれぞれが保有するゼーター電位が電界によって中和させ られ、水滴表面に作用していた電気二重層による反発力が弱まる結果、分子間引 力による水滴粒子の凝集粗大化現象が徐々に進行する。本願考案が処理対象とし ている原液は油滴粒子と水滴粒子の結合が極めて強いため、下向流分離槽A1内 だけの処理では油水の完全な分離は達成されず、下向流分離槽A1内での処理内 容は一次処理的な内容といえる。The oil-water mixed liquid that has flowed into the downward flow separation tank A1 flows downward from above in the tank and passes in the downward flow while bypassing between the charging plates 4a and 4b. The oil-water mixture is subjected to an electric field in addition to the physical separation due to the difference in specific gravity. This electric field action neutralizes the zeta potential of each water droplet particle by the electric field, weakening the repulsive force due to the electric double layer acting on the water droplet surface. Gradually progresses. Since the undiluted solution to be treated by the present invention has an extremely strong bond between oil droplet particles and water droplet particles, complete separation of oil water cannot be achieved by treatment only in the downward flow separation tank A1, and the downward flow separation tank A1 It can be said that the internal processing contents are primary processing contents.
【0022】 下向流分離槽A1では下向流の油液がその重量で少量の水液を下方に押し下げ 、下方に押し下げられた水液は更に油液に押されて隣接する上向流分離槽に移る 。次いで、上向流分離槽A2内に流れ込んだ二液混合液に対して、当該槽内にお いて下から上に向かう上向流の流れにそって二次処理としての比重差による油水 分離が行われる。そしてこの結果、油水界面X2を境にして上方に浮上油層Sが 形成され、他方槽内下層には水層が形成される。そして排油樋8の上縁を越えた 浮上油は排油樋8に流れ込み、当該排油樋8を通じて槽外に排出され、他方、上 向流分離槽内下層の水は油液に押されて排水パイプ9を通じて槽外に排出される 。このように、原液流入口3から注がれた油水混合液は下向流分離槽A1内にお ける一次処理と上向流分離槽A2内における二次処理を経ることによって、純度 の高い油と水の精製液となって回収される。このような精製は連続して行われ、 本装置に流入する原液をそれぞれの精製液に連続して分離回収することができる 。そして本考案装置では一次処理槽としての機能を有する下向流分離槽内におい て、液体の流れと高比重液である水液の下降沈降する方向が一致しているためそ の分離効果は極めて優れている。In the downward flow separation tank A1, a downward flow oil liquid pushes down a small amount of water liquid by its weight, and the downward pushed water liquid is further pushed by the oil liquid to separate adjacent upward flow liquids. Move to the tank. Next, for the two-liquid mixed liquid that has flowed into the upward flow separation tank A2, oil-water separation due to the difference in specific gravity as the secondary treatment is performed along the upward flow of the upward flow in the tank. Done. As a result, a floating oil layer S is formed above the oil / water interface X2, while a water layer is formed in the lower layer inside the tank. Then, the floating oil that has exceeded the upper edge of the drain gutter 8 flows into the drain gutter 8 and is discharged to the outside of the tank through the drain gutter 8, while the water in the lower layer inside the upflow separation tank is pushed by the oil liquid. It is discharged to the outside of the tank through the drainage pipe 9. In this way, the oil-water mixture poured from the stock solution inlet 3 undergoes the primary treatment in the downflow separation tank A1 and the secondary treatment in the upflow separation tank A2 to obtain a highly pure oil. And purified water to be recovered. Such purification is continuously carried out, and the stock solution flowing into the present apparatus can be continuously separated and collected into each purified solution. In the device of the present invention, in the downward flow separation tank having the function of the primary treatment tank, the flow of the liquid and the descending and settling direction of the water liquid, which is a high specific gravity liquid, coincide with each other, so the separation effect is extremely high. Are better.
【0023】 〈試験〉 本装置の効果を確かめるために図1で示した装置を用いた試験を行った。試験 は220cst/40℃のギヤーオイルに水溶性の界面活性剤を7000PPM 添加した油水混合液を、ポンプ流量0.6リットル/分で本装置に送って、本装 置によって回収される油中の水分量を測定することによって行い、本装置を1回 だけ通過させた場合、回収した油を再度本装置の入口側に帰還させて本装置内を 循環させるとともにその処理時間をそれぞれ変化させた場合とについてそれぞれ 測定した。尚、油温は50℃、槽内の油量は30リットルとし、荷電板には25 V/2cmの交流電圧を印加した。結果を表1に示す。また、試験中、処理中分 離された水分は排水パイプを通じて連続して槽外に排出した。<Test> In order to confirm the effect of this device, a test using the device shown in FIG. 1 was conducted. The test was conducted by sending an oil / water mixture prepared by adding 7,000 PPM of a water-soluble surfactant to a gear oil of 220 cst / 40 ° C to the device at a pump flow rate of 0.6 liter / min and collecting the oil in the oil collected by the device. When water content is measured and passed through this device only once, recovered oil is returned to the inlet side of this device to circulate inside this device and its processing time is changed. And were measured respectively. The oil temperature was 50 ° C., the amount of oil in the tank was 30 liters, and an alternating voltage of 25 V / 2 cm was applied to the charging plate. The results are shown in Table 1. During the test, the water separated during the treatment was continuously discharged outside the tank through the drainage pipe.
【0024】[0024]
【表1】 [Table 1]
【0025】[0025]
本考案の油水混合液等の二液分離装置は下向流分離槽内において、原液を上方 から下方へ流しながら電界作用と比重差を利用して行う一次処理と、上向流分離 槽内において、前記一次処理液を下から上に向かって流しながら行う比重差を利 用した二次処理を組み合わせ、特に一次処理において混合液を流す方向を下向流 となして、その方向を高比重液粒子の下降沈降方向と一致させたので、大量の油 に少量の水が混入している油水混合液や、界面活性剤の混入によって乳化してい る油水混合液など二液の粒子の結合が極めて強い場合でも、純度の高い精製液を 効率的に回収することができる。 また、荷電板間に多電極効果を有する多孔性の誘電体を介在させたり、多数枚 の荷電板を上向流分離槽内に縦設した場合は分離効率が一層高まる。 The two-liquid separation device of the present invention, such as an oil-water mixed liquid, has a primary treatment in the downflow separation tank, which uses the electric field action and the specific gravity difference while flowing the stock solution from above to below, and in the upflow separation tank. Combining the secondary treatments that use the difference in specific gravity performed while flowing the primary treatment liquid from the bottom to the top, in particular, the flow direction of the mixed solution in the primary treatment is defined as the downward flow, and that direction is the high specific gravity liquid. Since the direction of the descending sedimentation of the particles was made to coincide with that of the particles, the binding of the particles of the two liquids, such as the oil-water mixed solution in which a small amount of water was mixed in a large amount of oil, or the oil-water mixed solution which was emulsified by the mixture of the surfactant, was extremely Even if it is strong, it is possible to efficiently collect a highly purified liquid. Further, when a porous dielectric having a multi-electrode effect is interposed between the charging plates or a large number of charging plates are vertically installed in the upflow separation tank, the separation efficiency is further enhanced.
【図1】本考案の第1実施例であり、(イ)は縦断面説
明図、(ロ)は横断面説明図FIG. 1 is a first embodiment of the present invention, in which (a) is a longitudinal sectional explanatory view and (b) is a lateral sectional explanatory view.
【図2】本考案の第2実施例であり、(イ)は縦断面説
明図、(ロ)は横断面説明図FIG. 2 is a second embodiment of the present invention, in which (a) is a longitudinal sectional explanatory view and (b) is a lateral sectional explanatory view.
【図3】本考案の第3実施例であり、(イ)は縦断面説
明図、(ロ)は横断面説明図FIG. 3 is a third embodiment of the present invention, in which (a) is a longitudinal sectional explanatory view and (b) is a lateral sectional explanatory view.
【図4】本考案の第4実施例であり、(イ)は縦断面説
明図、(ロ)は横断面説明図FIG. 4 is a fourth embodiment of the present invention, in which (a) is a vertical cross-sectional explanatory view and (b) is a horizontal cross-sectional explanatory view.
【図5】フロートサクションを示し、(イ)は平面図、
(ロ)は正面図FIG. 5 shows a float suction, (a) is a plan view,
(B) is a front view
【図6】従来の二液分離装置の概略を示す縦断面説明図FIG. 6 is an explanatory longitudinal sectional view showing the outline of a conventional two-liquid separating device.
A 槽体 A1 下向流分離槽 A2 上向流分離槽 1 連通路 2 仕切板 3 原液流入口 4a,4b 荷電板 4a´,4b´ 荷
電板 5 荷電源 6 外板 7 絶縁板 8 排油樋 9 排水パイプ 10 パイプ先端口 11 水溜め用仕切板 12 レベル調整器 13a,13b 荷電板 14 フロートサク
ション 15 支持棒 16 フロート 17 サクションホース 18 吸い込み口A Tank body A1 Downflow separation tank A2 Upflow separation tank 1 Communication path 2 Partition plate 3 Undiluted solution inlet 4a, 4b Charging plate 4a ', 4b' Charging plate 5 Charging power source 6 Outer plate 7 Insulating plate 8 Oil drain trough 9 Drain Pipe 10 Pipe Tip Port 11 Water Storage Partition Plate 12 Level Adjuster 13a, 13b Charging Plate 14 Float Suction 15 Support Rod 16 Float 17 Suction Hose 18 Suction Port
Claims (5)
配置され装置外部から連続供給される二液混合液の原液
を前記荷電板間において上方から下方に向けて下向流で
流して一次処理する下向流分離槽と、前記下向流分離槽
と下部で連通し当該連通路を通じて導入された一次処理
液を下方から上方へ浮上させながら二次処理を行う上向
流分離槽とを有し、前記上向流分離槽における上部側に
は分離された低比重液の排出口を設け且つ底部側には分
離された高比重液の排出口を設けてなる油水混合液等の
二液分離装置。1. A plurality of charging plates to which a voltage is applied are arranged to face each other, and an undiluted solution of a two-liquid mixed liquid continuously supplied from the outside of the apparatus is caused to flow downward between the charging plates in a downward direction. A down-flow separation tank for primary treatment, and an up-flow separation tank for communicating with the down-flow separation tank at the bottom and performing secondary treatment while floating the primary treatment liquid introduced through the communication passage from below to above. And a discharge port for the separated low specific gravity liquid on the upper side of the upflow separation tank and a discharge port for the separated high specific gravity liquid on the bottom side. Liquid separator.
枚の荷電板を垂直方向に縦設してなる請求項1記載の油
水混合液等の二液分離装置。2. A two-liquid separating apparatus for an oil-water mixed liquid or the like according to claim 1, wherein a plurality of charging plates to which a voltage is applied are vertically installed in an upflow separation tank.
誘電体を介在させてなる請求項1又は2記載の油水混合
液等の二液分離装置。3. A two-liquid separating apparatus for an oil / water mixed liquid according to claim 1, wherein a porous dielectric having a multi-electrode effect is interposed between the charging plates.
cmの交流電圧を用いてなる請求項1,2又は3記載の
油水混合液等の二液分離装置。4. A charging voltage of 0.5 V to 3000 V /
A two-liquid separating device for an oil-water mixed liquid or the like according to claim 1, 2 or 3, wherein an AC voltage of cm is used.
高比重液が分散した二液混合液を回収する手段として、
120°角で配置した3本の支柱にフロートを取りつけ
て構成したフロートサクションを用い、二液界面を基準
として吸い込み口の設定高さが可変可能な状態で低比重
液を回収してなる請求項1,2,3又は4記載の油水混
合液等の二液分離装置。5. A means for collecting a two-liquid mixed liquid in which a high specific gravity liquid is dispersed in a low specific gravity liquid floating in the upper layer of a stock solution tank,
A low specific gravity liquid is collected by using a float suction configured by attaching floats to three columns arranged at 120 ° angles, and in a state in which the set height of the suction port can be varied with reference to the two-liquid interface. A two-liquid separation device for the oil-water mixed liquid according to 1, 2, 3 or 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2357392U JPH0645604U (en) | 1992-03-18 | 1992-03-18 | Two-liquid separation device for mixed oil-water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2357392U JPH0645604U (en) | 1992-03-18 | 1992-03-18 | Two-liquid separation device for mixed oil-water |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0645604U true JPH0645604U (en) | 1994-06-21 |
Family
ID=12114292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2357392U Pending JPH0645604U (en) | 1992-03-18 | 1992-03-18 | Two-liquid separation device for mixed oil-water |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0645604U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104841168A (en) * | 2015-05-14 | 2015-08-19 | 山东大学(威海) | Polar plate capacitance-type low-frequency high-voltage emulsion breaking device |
-
1992
- 1992-03-18 JP JP2357392U patent/JPH0645604U/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104841168A (en) * | 2015-05-14 | 2015-08-19 | 山东大学(威海) | Polar plate capacitance-type low-frequency high-voltage emulsion breaking device |
CN104841168B (en) * | 2015-05-14 | 2017-05-10 | 山东大学(威海) | Polar plate capacitance-type low-frequency high-voltage emulsion breaking device |
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