JP2654837B2 - Aeration stirring device - Google Patents
Aeration stirring deviceInfo
- Publication number
- JP2654837B2 JP2654837B2 JP2027354A JP2735490A JP2654837B2 JP 2654837 B2 JP2654837 B2 JP 2654837B2 JP 2027354 A JP2027354 A JP 2027354A JP 2735490 A JP2735490 A JP 2735490A JP 2654837 B2 JP2654837 B2 JP 2654837B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter portion
- air
- rotary shaft
- small
- air chamber
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Farming Of Fish And Shellfish (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
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撹拌装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to an aeration and stirring device in a sewage treatment tank, a fish pond and the like.
（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、水中の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。また、回転する
羽根の回転軸の中心部先端から空気を流出するものも考
えられた。(Prior Art) Conventionally, in a treatment tank or a fish pond of a sewage treatment apparatus using microorganisms, a water wheel is rotated or pressurized air is blown into water to diffuse bubbles for dissolving oxygen in water in a water tank. Was performing aeration and aeration. Further, it is considered that air flows out from the center of the rotating shaft of the rotating blade.
（発明が解決しようとする課題） 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。また、回転する羽根の回転軸の中心部先端から空気
を流出するものも気泡が大きくなりがちであった。(Problems to be Solved by the Invention) Those that rotate the water wheel on the water surface cannot aerate deep parts, while those that perform diffused aeration by blowing pressurized air have large air bubbles and gas-liquid contact. Not done enough. In addition, bubbles that flow out of the air from the center of the rotating shaft of the rotating blade tend to have large bubbles.
（課題を解決するための手段） 本発明の請求項１に記載された曝気撹拌装置は、外周
に羽根が固着された先端側の大径部と水中モータの回転
軸に連結された小径部とを有する段付回転軸と、前記小
径部の外周側部分に、空気が供給されるように形成され
た空気室と、前記空気室から段付回転軸の先端側に空気
が通過するように前記大径部を貫通して設けられた孔
と、を具備することを特徴とする。(Means for Solving the Problems) The aeration and agitation device according to claim 1 of the present invention includes a large-diameter portion on the distal end side where blades are fixed to an outer periphery and a small-diameter portion connected to a rotating shaft of a submersible motor. A stepped rotary shaft having an air chamber formed so that air is supplied to an outer peripheral side portion of the small diameter portion; and an air chamber formed so that air passes from the air chamber to a tip end side of the stepped rotary shaft. And a hole provided through the large diameter portion.
また、本発明の請求項２に記載された発明は、外周に
羽根が固着された先端側の中空の大径部と水中モータの
回転軸に連結された小径部とを有し、大径部の内部が横
方向に沿った隔壁板によって軸方向に分割された段付回
転軸と、前記小径部の外周側部分に、空気が供給される
ように形成された空気室と、前記空気室から大径部内の
分割された中空部へ空気が流入するように、前記大径部
と小径部側部分を貫通して設けられた孔と、を具備する
ことを特徴とする。Further, the invention described in claim 2 of the present invention has a hollow large-diameter portion on the tip end side with a blade fixed to the outer periphery and a small-diameter portion connected to a rotating shaft of a submersible motor. A stepped rotating shaft whose inside is divided in the axial direction by a partition plate extending in the lateral direction, an outer peripheral portion of the small diameter portion, an air chamber formed so that air is supplied, and an air chamber formed from the air chamber. A hole is provided through the large-diameter portion and the small-diameter portion side portion so that air flows into the divided hollow portion in the large-diameter portion.
（作用） 本発明の請求項１に記載された曝気撹拌装置は、水中
モーターの回転軸に連結された段付回転軸の小径部の外
周側に空気室が形成されており、この空気室に供給され
た空気が、段付回転軸の先端大径部に設けられた光を通
って、段付回転軸の先端側に排出される。段付回転軸の
大径部に設けられた孔内に流入する空気は、段付回転軸
の回転によって、不連続状態に切断されて微細化される
ために、段付回転軸の先端側において効率よく水に混合
される。(Function) In the aeration and agitation device according to claim 1 of the present invention, an air chamber is formed on the outer peripheral side of the small diameter portion of the stepped rotary shaft connected to the rotary shaft of the submersible motor, and the air chamber is formed in the air chamber. The supplied air passes through the light provided at the large-diameter portion at the tip of the stepped rotary shaft and is discharged to the tip side of the stepped rotary shaft. The air flowing into the hole provided in the large-diameter portion of the stepped rotary shaft is cut in a discontinuous state by the rotation of the stepped rotary shaft and is finely divided. Mixes efficiently with water.
また、本発明の請求項２に記載された曝気撹拌装置
は、水中モーターの回転軸に連結された段付回転軸の小
径部の外周側に空気室が形成されており、この空気室に
供給された空気が、段付回転軸の大径部における小径部
側部分に設けられた孔を通って大径部内に流入し、大径
部における隔壁によって分割された中空部分を通って大
径部の先端から排出される。このとき、大径部の分割さ
れた各中空部分に流入する空気は、隔壁板によって不連
続状態に切断されて微細化されるために効率よく水に混
合される。Further, in the aeration stirring device according to the second aspect of the present invention, an air chamber is formed on the outer peripheral side of the small diameter portion of the stepped rotary shaft connected to the rotary shaft of the submersible motor, and the air chamber is supplied to the air chamber. The air flowed into the large-diameter portion through the hole provided in the small-diameter portion side portion of the large-diameter portion of the stepped rotary shaft, and passed through the hollow portion divided by the bulkhead in the large-diameter portion to have the large-diameter portion. It is discharged from the tip. At this time, the air flowing into each of the divided hollow portions of the large-diameter portion is cut into a discontinuous state by the partition plate and is miniaturized to be efficiently mixed with water.
（実施例） 以下、図面の実施例を説明する、説明の便宜上第１図
における左・右を「前」・「後」と呼称する。(Embodiment) Hereinafter, an embodiment of the drawings will be described. For convenience of description, the left and right in FIG. 1 are referred to as “front” and “back”.
１は水中モータでその先端凹所1aの内のモートル軸1b
に羽根２の段付回転軸３が摩擦リング４・ボルト５によ
って固着してある。1 is a submersible motor and a motor shaft 1b in a recess 1a at the tip thereof.
The stepped rotary shaft 3 of the blade 2 is fixed by a friction ring 4 and a bolt 5.
水中モータ１は架台６に固着しており、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
クに上下摺動自在に嵌合してあり、架台６の上部の係着
したチェン８を図示しないチェンホイストにより昇降す
るごとくしてある。The underwater motor 1 is fixed to the gantry 6, and the elevating members 6a and 6b of the gantry 6 are vertically slidably fitted to the guide barks erected in the treatment tank of the sewage treatment plant. The engaged chain 8 is moved up and down by a chain hoist (not shown).
９はモートル軸1bのメカニカルシール、10はオイルシ
ール、11は摺動リングであり、水中モータ１の先端凹所
1aの周壁と羽根２と段付回転軸３との間の空間は空気室
12となり、空気供給管13が連通してある。9 is a mechanical seal of the motor shaft 1b, 10 is an oil seal, 11 is a sliding ring, and a recess at the tip of the underwater motor 1.
The space between the peripheral wall 1a, the blade 2 and the stepped rotary shaft 3 is an air chamber.
12 and the air supply pipe 13 is in communication.
段付回転軸３は水中モータ１側3aが小径部となり、先
端側3bが大径部となり、大径部3bの水中モータ１側の端
部が摺動リング11に嵌合してあり、大径部3bの先端側外
周に羽根２が固着してある。段付回転軸３は中空となっ
て内部は軸連結部となり、先端にはごみの侵入を防止し
て盲蓋14が螺設してある。段付回転軸３の大径部3bの小
径部3aの外径より系の大きい部分には水中モータ１側か
ら先端側へ貫通する孔15が複数個穿設してある。この孔
15により空気室12は先端側へ連通している。18はバラン
ス孔で軸心に対して重量バランスがとれていない場合は
回転時振動が発生するので貫通しないバランス孔を穿設
して重量を平衡させる。The stepped rotary shaft 3 has a small-diameter portion on the underwater motor 1 side 3a, a large-diameter portion on the distal end 3b, and an end of the large-diameter portion 3b on the submersible motor 1 side fitted to the sliding ring 11; The blade 2 is fixed to the outer periphery of the distal end side of the diameter portion 3b. The stepped rotary shaft 3 is hollow and the inside is a shaft connecting portion, and a blind cover 14 is screwed at the tip to prevent dust from entering. A plurality of holes 15 penetrating from the underwater motor 1 side to the tip side are formed in a portion of the large diameter portion 3b of the stepped rotary shaft 3 larger than the outer diameter of the small diameter portion 3a. This hole
The air chamber 12 communicates with the distal end side by 15. Numeral 18 denotes a balance hole, in which when the weight is not balanced with respect to the axis, vibration occurs at the time of rotation.
16はドラフト環で羽根２を囲繞するごとく架台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
強力な旋回水流WFを発生させるためのガイドとしての役
割を果す。Reference numeral 16 denotes a draft ring which is fixed to the gantry 6 so as to surround the blade 2 and serves as a guide for increasing the efficiency at the blade tip of the blade 2 and generating a strong swirling water flow WF.
17は水中モータ１の給電ケーブルで図示しない地上の
電源に接続してある。Ｐは汚水処理等の処理槽である。A power supply cable 17 for the underwater motor 1 is connected to a ground power supply (not shown). P is a treatment tank for sewage treatment or the like.
しかして、水中モータ１への給電により、羽根２が回
転すると架台６周辺の水が羽根２によってドラフト環16
内へ吸込まれて撹拌されながら排出されて水流WFを発生
する。空気供給管13から空気室12へ空気を供給すると、
空気室12の空気は孔15から流出する。孔15は小径部孔の
径より外方にあるため回転によって位置が移動し、この
ため流出した空気は水と軸端によって切断されて微小粒
子となって水と混合するから、水と空気の混合が十分に
行われる。When the blade 2 rotates by supplying power to the underwater motor 1, water around the gantry 6 is drawn by the draft ring 16 by the blade 2.
It is sucked into and discharged while being stirred to generate a water flow WF. When air is supplied from the air supply pipe 13 to the air chamber 12,
The air in the air chamber 12 flows out of the hole 15. Since the hole 15 is located outside the diameter of the small-diameter portion hole, the position of the hole 15 moves due to rotation.Therefore, the outflowing air is cut by water and the shaft end to become fine particles and mixed with water. Mixing is sufficient.
第３図乃至第５図は別の実施例を示し、前実施例にお
ける段付回転軸３が変化した構造となっている。このた
め段付回転軸以外は前実施例と同様であるから前実施例
と同じ符号を使用して説明を省略し、段付回転軸にみ別
の符号を使用して説明する。3 to 5 show another embodiment, in which the stepped rotary shaft 3 in the previous embodiment is changed. For this reason, except for the stepped rotary shaft, it is the same as the previous embodiment, so the description is omitted using the same reference numerals as in the previous embodiment, and the description will be made using the different reference numerals only for the stepped rotary shaft.
段付回転軸51は水中モータ１側51aが小径部となり、
先端側51bが大径部となり、小径部51aの内部は軸連結部
となり、大径部51bの先端側内部は全周を均等に分割し
た位置に複数個所肉抜きをした中空部51cとしてあり、
軸方向に延びる隔壁板52によって該中空部51cを分割し
てある。隔壁板52は軸方向に延びる隔壁板52a・52b・52
c・52dが軸心から放射状に連結されて取付フランジ52e
に結合されており、取付ねじ53によって取着してある。The stepped rotating shaft 51 has a small diameter portion on the underwater motor 1 side 51a,
The distal end 51b is a large diameter portion, the inside of the small diameter portion 51a is a shaft connecting portion, and the inside of the distal end of the large diameter portion 51b is a hollow portion 51c having a plurality of hollow portions at positions where the entire circumference is equally divided,
The hollow portion 51c is divided by a partition plate 52 extending in the axial direction. The partition plate 52 is a partition plate 52a, 52b, 52 extending in the axial direction.
c ・ 52d is connected radially from the shaft center and the mounting flange 52e
And is attached by mounting screws 53.
54は連通孔で大径部51bの肉抜きをした部分へ空気室1
2から貫通して複数個穿設されている。54 is a communication hole to the part where the large-diameter part 51b is lightened.
A plurality of holes are drilled through from 2.
55はバランス孔で軸心に対して重量バランスがとれて
いない場合は回転時振動が発生するので貫通しないバラ
ンス孔を適宜穿設した軸心に対して重量を平衡させてあ
る。Reference numeral 55 designates a balance hole which balances the weight with respect to the shaft center where a balance hole which does not penetrate is appropriately formed because vibration occurs during rotation when the weight is not balanced with respect to the shaft center.
しかして、水中モータへの給電により、羽根２が回転
すると架台６周辺の水が羽根２によってドラフト環16内
へ吸込まれて撹拌されながら排水されて水流WFを発生す
る。空気供給管13から空気室12へ空気を供給すると空気
室12の空気は連通孔54から分割された中空室へ流出し、
分割された中空室の先端から流出して水と回転する隔壁
板52の端部によって切断され微細粒子となって水と撹拌
混合される。When the blade 2 rotates by supplying power to the underwater motor, water around the gantry 6 is sucked into the draft ring 16 by the blade 2 and drained while being stirred to generate a water flow WF. When air is supplied from the air supply pipe 13 to the air chamber 12, the air in the air chamber 12 flows out of the communication hole 54 into the divided hollow chamber,
The water flows out from the tip of the divided hollow chamber and is cut by the end of the partition wall plate 52 that rotates with water, and is cut into fine particles to be stirred and mixed with water.
（発明の効果） 以上のごとく本発明は水中モータの回転軸に先端側が
大径部となって外周に羽根を固着して水中モータ側が小
径部となった段付回転軸を連結し、前記小径部の外周側
で水中モータと大径部で囲まれた部分に空気室を形成し
て空気供給管に連通し、空気室から段付回転軸の回転に
よって移動する流出部から空気を流出するごとくしたか
ら、流出した空気が水と流出部を移動させる軸端や隔壁
端部によって切断されて微小細粒となって水と混合する
から、曝気効果が向上する。(Effects of the Invention) As described above, the present invention connects a stepped rotary shaft having a large-diameter portion on the distal end side to the rotary shaft of the underwater motor and a blade attached to the outer periphery and a small-diameter portion on the underwater motor side, An air chamber is formed in a part surrounded by the underwater motor and the large-diameter part on the outer peripheral side of the part, and communicates with the air supply pipe, so that air flows out of the outflow part that moves from the air chamber by rotation of the stepped rotary shaft. Thus, the outflowing air is cut by water and the shaft end or partition end that moves the outflow portion to form fine particles and mix with water, so that the aeration effect is improved.
図はいずれも本発明の一実施例を示し、第１図は一部を
破断した側面図、第２図は第１図のII−IIから見た正面
図、第３図乃至第５図は別の実施例を示し、第３図は一
部を破断した側面図、第４図は第３図のVI−VIから見た
正面図、第５図は隔壁板52の斜示図、第６図は第３図の
VI−VIから見た断面図である。 １……水中モータ、２……羽根、 ３……段付回転軸、3a……小径部、 3b……大径部、12……空気室、 13……空気供給管、15……孔、 51……段付回転軸、51a……小径部、 51b……大径部、51c……中空部、 52……隔壁板、54……連通孔。1 shows an embodiment of the present invention, FIG. 1 is a partially cutaway side view, FIG. 2 is a front view taken along the line II-II of FIG. 1, and FIGS. FIG. 3 is a partially cutaway side view, FIG. 4 is a front view as viewed from VI-VI of FIG. 3, FIG. 5 is a perspective view of a partition plate 52, FIG. Fig. 3
It is sectional drawing seen from VI-VI. 1 ... submersible motor, 2 ... blade, 3 ... stepped rotary shaft, 3a ... small diameter section, 3b ... large diameter section, 12 ... air chamber, 13 ... air supply pipe, 15 ... hole, 51: Stepped rotating shaft, 51a: Small diameter portion, 51b: Large diameter portion, 51c: Hollow portion, 52: Partition plate, 54: Communication hole.
Claims (2)
水中モータの回転軸に連結された小径部とを有する段付
回転軸と、 前記小径部の外周側部分に、空気が供給されるように形
成された空気室と、 前記空気室から段付回転軸の先端側に空気が通過するよ
うに前記大径部を貫通して設けられた孔と、 を具備することを特徴とする曝気撹拌装置。1. A stepped rotary shaft having a large-diameter portion on the distal end side with a blade fixed to the outer periphery and a small-diameter portion connected to a rotary shaft of a submersible motor; and air on the outer peripheral portion of the small-diameter portion. An air chamber formed so as to be supplied, and a hole provided through the large-diameter portion so that air passes from the air chamber to a tip end side of the stepped rotating shaft. Aeration and stirring device.
径部と水中モータの回転軸に連結された小径部とを有
し、大径部の内部が横方向に沿った隔壁板によって軸方
向に分割された段付回転軸と、 前記小径部の外周側部分に、空気が供給されるように形
成された空気室と、 前記空気室から大径部内の分割された中空部へ空気が流
入するように、前記大径部と小径部側部分を貫通して設
けられた孔と、 を具備することを特徴とする曝気撹拌装置。2. A partition plate having a hollow large-diameter portion on the distal end side with blades fixed to the outer periphery and a small-diameter portion connected to a rotating shaft of a submersible motor, wherein the inside of the large-diameter portion extends along the lateral direction. A stepped rotary shaft divided in the axial direction by the axial direction, an air chamber formed so that air is supplied to an outer peripheral portion of the small diameter portion, and a divided hollow portion in the large diameter portion from the air chamber. And a hole provided through the large-diameter portion and the small-diameter portion side portion to allow air to flow therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2027354A JP2654837B2 (en) | 1990-02-07 | 1990-02-07 | Aeration stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2027354A JP2654837B2 (en) | 1990-02-07 | 1990-02-07 | Aeration stirring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03232593A JPH03232593A (en) | 1991-10-16 |
| JP2654837B2 true JP2654837B2 (en) | 1997-09-17 |
Family
ID=12218706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2027354A Expired - Fee Related JP2654837B2 (en) | 1990-02-07 | 1990-02-07 | Aeration stirring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2654837B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100314747B1 (en) * | 1999-11-16 | 2001-11-17 | 한상배 | Waste Water Treatment Equipment with the Function of Air Priming, Intermittent Aeration, Deoderization, Agitating and Horizontal Mixing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532105U (en) * | 1978-08-22 | 1980-03-01 | ||
| JPS63256194A (en) * | 1987-04-10 | 1988-10-24 | Shin Meiwa Ind Co Ltd | Aeration stirrer |
| JPS63294998A (en) * | 1987-05-26 | 1988-12-01 | Shin Meiwa Ind Co Ltd | Aeration stirrer |
-
1990
- 1990-02-07 JP JP2027354A patent/JP2654837B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03232593A (en) | 1991-10-16 |
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