JPS63256195A - Aerating and agitating method - Google Patents

Aerating and agitating method

Info

Publication number
JPS63256195A
JPS63256195A JP62089297A JP8929787A JPS63256195A JP S63256195 A JPS63256195 A JP S63256195A JP 62089297 A JP62089297 A JP 62089297A JP 8929787 A JP8929787 A JP 8929787A JP S63256195 A JPS63256195 A JP S63256195A
Authority
JP
Japan
Prior art keywords
water flow
air
water
flow
same direction
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
JP62089297A
Other languages
Japanese (ja)
Inventor
Ichiro Murase
村瀬　一郎
Tadashi Taniguchi
正 谷口
Daisuke Ueki
植木　大介
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.)
Shinmaywa Industries Ltd
Original Assignee
Shin Meiva Industry 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 Shin Meiva Industry Ltd filed Critical Shin Meiva Industry Ltd
Priority to JP62089297A priority Critical patent/JPS63256195A/en
Publication of JPS63256195A publication Critical patent/JPS63256195A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2332—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements the stirrer rotating about a horizontal axis; Stirrers therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2334—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer
    • B01F23/23341—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer with tubes surrounding the stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2335—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer
    • B01F23/23353—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer the gas being sucked towards the rotating stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2336—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
    • B01F23/23367—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced behind the stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/25—Mixers with both stirrer and drive unit submerged in the material being mixed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/113—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

PURPOSE:To mix fine air particles into the water over a wide range by generating a spiral water flow by the impeller of a water flow generator, and supplying compressed air to the central part of the water flow in the same direction as the water flow. CONSTITUTION:The spiral water flow JF is generated by the impeller 2 of the water flow generator 1, and compressed air is supplied from a compressed air source 13 such as a blower to the central part of the water flow in the same direction as the water flow through an air supply pipe 11, an air chamber 10, a communicating pipe 12, etc. As a result, an air flow AF is generated in the water flow, the air in the central air flow is swallowed up by the wave JFW of the spiral water flow JF, and the air is mixed into water over a long distance as fine particles.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は汚水処理槽、養魚池等における曝気攪拌方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an aeration agitation method in sewage treatment tanks, fish ponds, etc.

（従来の技術） 従来、微生物を利用した汚水処理装置の処理槽や、養魚
池等において、水中に酸素を溶存させる気泡を拡散させ
るため、水面部において水車を回転させたり加圧空気を
水に吹き込んで散気曝気を行っていた。(Prior art) Conventionally, in treatment tanks of sewage treatment equipment using microorganisms, fish ponds, etc., in order to diffuse bubbles that dissolve oxygen in the water, a water wheel was rotated at the water surface or pressurized air was pumped into the water. Aeration was performed by blowing air into the air.

（発明が解決しようとする問題点） 水面部において水車を回転させるものは深部を曝気する
ことができず、加圧空気を吹き込んで散気曝気を行うも
のは気泡が大となって気液接触が十分に行われなかった
。(Problems to be solved by the invention) A water wheel that rotates at the surface of the water cannot aerate the deep part of the water, and a system that performs diffused aeration by blowing pressurized air causes large bubbles that cause gas-liquid contact. was not done enough.

（問題点を解決するための手段） 回転羽根等による水流発生機によって水流を発生し、該
水流の中央部に水流と同方向に加圧空気を供給して曝気
攪拌する。(Means for Solving the Problems) A water flow is generated by a water flow generator using a rotary blade or the like, and pressurized air is supplied to the center of the water flow in the same direction as the water flow for aeration and agitation.

（作用） 上記のごとくしたから、水流発生機によって発生した旋
回水流中に加圧空気を水流と同方向に供給して旋回水流
中に空気流を発生し、該空気流から旋回する水流の波に
よって空気が切り取られて水中へ微細粒子となって混入
しながら前方へ前進し、広範囲の水中に空気が微細粒と
なって混入する。(Function) As described above, pressurized air is supplied into the swirling water flow generated by the water flow generator in the same direction as the water flow to generate an air flow in the swirling water flow, and waves of the swirling water flow are generated from the air flow. The air is cut out and mixed into the water in the form of fine particles as it moves forward, and the air mixes into the water in the form of fine particles over a wide area.

（実施例） 以下図面の簡単な説明する。説明の便宜上、第１図にお
ける左・右を「前」・「後」と呼称する。(Example) A brief explanation of the drawings will be given below. For convenience of explanation, the left and right in FIG. 1 are referred to as "front" and "rear".

１は軸流ポンプ等の羽根を回転して水流を発生する水流
発生機で、水流発生機本体１ａの先端凹所ｌｂ内のモー
ドル軸１ｃに羽根２の回転軸３が摩擦リング４・ポルト
５によって固着しである。1 is a water flow generator that generates water flow by rotating the blades of an axial flow pump, etc., and the rotating shaft 3 of the blade 2 is connected to the mold shaft 1c in the tip recess lb of the water flow generator main body 1a, and the friction ring 4 and port 5 It is fixed by

水流発生機１は架台６に固着してあり、架台６の昇降部
材６ａ・６ｂが汚水処理場の処理槽に立設したガイドバ
ー７に上下摺動自在に嵌合してあり、架台６の上部に係
着したチェノ１５を図示しないチェノホイストにより昇
降するごとくしである。The water flow generator 1 is fixed to a pedestal 6, and the lifting members 6a and 6b of the pedestal 6 are vertically slidably fitted into a guide bar 7 installed upright in a treatment tank of a sewage treatment plant. A chino 15 attached to the upper part is raised and lowered by a chino hoist (not shown).

８はモードル軸１ｃのメカニカルシール、９は摺動リン
グであり、水流発生機１ａの先端凹所１ｂの周壁と羽根
２の回転軸３との間の空間は空気室１０となっている。8 is a mechanical seal of the mold shaft 1c, 9 is a sliding ring, and the space between the peripheral wall of the tip recess 1b of the water flow generator 1a and the rotating shaft 3 of the blade 2 is an air chamber 10.

１３はブロワ等の加圧空気源で空気供給管１１によって
空気室１０へ連通してる。前記回転軸３は先端開放の中
空となっており、数個の連通孔１２を穿設して回転軸３
の中空部３ａと空気室１０を連通しである。Reference numeral 13 denotes a pressurized air source such as a blower, which is communicated with the air chamber 10 through an air supply pipe 11. The rotary shaft 3 is hollow with an open end, and several communicating holes 12 are bored into the rotary shaft 3.
The hollow part 3a and the air chamber 10 are communicated with each other.

１４はドラフト環で羽根２を囲繞するごと（架台６に固
着してあり、羽根２の翼端での効率を高くするとともに
強力なジェット旋回流ＪＦを発生させるためのガイドと
しての役割を果す。処理槽が小である場合や夾雑物の多
い場合はドラフト環を使用しなくてもよい。14 surrounds the blade 2 with a draft ring (fixed to the mount 6), and serves as a guide to increase the efficiency at the blade tip of the blade 2 and generate a strong jet swirl flow JF. If the treatment tank is small or has a lot of foreign matter, it is not necessary to use a draft ring.

１６は水流発生機１の給電ケーブルで図示しない地上の
電源に接続しである。Ｐは汚水処理場等の処理槽、ＡＰ
は空気流、ＪＦＷはジェット旋回流ＪＦの波で空気流Ａ
Ｆとの間に発生している。Reference numeral 16 denotes a power supply cable for the water flow generator 1, which is connected to a ground power source (not shown). P is a treatment tank such as a sewage treatment plant, AP
is the air flow, JFW is the wave of the jet swirl flow JF, and the air flow A
It is occurring between F.

しかして、水流発生機１への給電により、羽根２が回転
すると二架台６周囲の水が羽根２によってドラフト環１
４内へ吸込まれて攪拌されながら強力なジェット旋回流
ＪＦとなって前方へ押し出される。この強力なジェット
旋回流ＪＦ中へ加圧空気源１３がら空気供給管１１、空
気室１０、連通孔１２を通して回転軸３の中空部３ａか
らジェット旋回流ＪＦの中央部へ該ジェット旋回流ＪＦ
と同方向に加圧空気が供給され、ジェット旋回流ＪＦ中
に空気流ＡＦができ、該空気流ＡＦから旋回するジエ・
フト流の波ＪＦＷによって空気が切り取られて水中へ微
細粒子となって混入しながら前方へ前進する。また連続
駆動するとジェット旋回流の方向に水流ができて微細空
気粒の混入した水　　４が更に広い範囲に移動して気液
混合が十分に行われ、広い範囲の生物学的分解等が円滑
に進行する。When the blades 2 rotate due to the power supplied to the water flow generator 1, the water around the second mount 6 is transferred to the draft ring by the blades 2.
4 and is stirred, forming a powerful jet swirling flow JF and being pushed forward. The pressurized air source 13 passes through the air supply pipe 11, the air chamber 10, and the communication hole 12 into this powerful jet swirling flow JF from the hollow part 3a of the rotating shaft 3 to the center of the jet swirling flow JF.
Pressurized air is supplied in the same direction as the jet swirling flow JF, and an airflow AF is created in the jet swirling flow JF.
The air is cut off by the flow wave JFW, and it moves forward while mixing into the water as fine particles. In addition, when driven continuously, a water flow is created in the direction of the jet swirl flow, and the water mixed with fine air particles moves over a wider area, resulting in sufficient gas-liquid mixing and smooth biological decomposition over a wide area. proceed.

（発明の効果） 以上のどと（本発明は回転羽根による水流発生機によっ
て水流を発生し、該水流の中央部に水流と同方向に加圧
空気を供給するから、水流中に空気流が発生し、旋回す
る水流の波によって中央空気流の空気が切り取られ、長
い距離にわたって空気が微細な粒子となって水に混入し
、更に連続駆動による水流によって広い範囲に移動して
気液混合が十分に行われ、広い範囲の生物学的分解等が
円滑に進行する。(Effects of the Invention) The present invention generates a water flow using a water flow generator using rotating blades, and supplies pressurized air to the center of the water flow in the same direction as the water flow, so an air flow is generated within the water flow. Then, the air in the central air stream is cut off by the waves of the swirling water stream, and the air becomes fine particles over a long distance and mixes with the water.Then, the continuously driven water stream moves over a wide area to ensure sufficient air-liquid mixing. It is carried out over a wide range of biological decomposition, etc., and progresses smoothly.

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

図はいずれも本発明の一実施例を示し、第１図は一部を
断面にした側面図、第２図は第１図の■〜■から見た正
面図である。 図中、１は水流発生機、２は羽根、３は回転軸、３ａは
中空部、１０は空気室、１１は空気供給管、１２は連通
孔、１３はブロワ等の加圧空気源、１はドラフト環であ
る。The drawings all show one embodiment of the present invention, and FIG. 1 is a partially sectional side view, and FIG. 2 is a front view seen from 1 to 2 in FIG. 1. In the figure, 1 is a water flow generator, 2 is a blade, 3 is a rotating shaft, 3a is a hollow part, 10 is an air chamber, 11 is an air supply pipe, 12 is a communication hole, 13 is a pressurized air source such as a blower, 1 is a draft ring.

Claims (1)

【特許請求の範囲】[Claims] 回転羽根等による水流発生機によって水流を発生し、該
水流の中央部に水流と同方向に加圧空気を供給して曝気
撹拌する方法。A method in which a water stream is generated by a water stream generator using rotating blades, etc., and pressurized air is supplied to the center of the water stream in the same direction as the water stream for aeration and agitation.
JP62089297A 1987-04-10 1987-04-10 Aerating and agitating method Pending JPS63256195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62089297A JPS63256195A (en) 1987-04-10 1987-04-10 Aerating and agitating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62089297A JPS63256195A (en) 1987-04-10 1987-04-10 Aerating and agitating method

Publications (1)

Publication Number Publication Date
JPS63256195A true JPS63256195A (en) 1988-10-24

Family

ID=13966740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62089297A Pending JPS63256195A (en) 1987-04-10 1987-04-10 Aerating and agitating method

Country Status (1)

Country Link
JP (1) JPS63256195A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0278492A (en) * 1988-09-14 1990-03-19 Hitachi Kiden Kogyo Ltd Aeration apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0278492A (en) * 1988-09-14 1990-03-19 Hitachi Kiden Kogyo Ltd Aeration apparatus
JPH0583319B2 (en) * 1988-09-14 1993-11-25 Hitachi Kiden Kogyo Kk

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