JPH0646557Y2 - Aeration device - Google Patents
Aeration deviceInfo
- Publication number
- JPH0646557Y2 JPH0646557Y2 JP1991084735U JP8473591U JPH0646557Y2 JP H0646557 Y2 JPH0646557 Y2 JP H0646557Y2 JP 1991084735 U JP1991084735 U JP 1991084735U JP 8473591 U JP8473591 U JP 8473591U JP H0646557 Y2 JPH0646557 Y2 JP H0646557Y2
- Authority
- JP
- Japan
- Prior art keywords
- hollow shaft
- shaft
- aeration
- intake hole
- screw
- 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 - Lifetime
Links
- 238000005273 aeration Methods 0.000 title claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000005276 aerator Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000010865 sewage Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
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
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は中空軸内に穿孔した吸気
孔が、汚水の撹拌曝気により発生する泡により閉塞され
ないようにして曝気効果を向上せしめた曝気装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aeration device in which an aeration hole formed in a hollow shaft is prevented from being blocked by bubbles generated by aeration and aeration of sewage, thereby improving the aeration effect.
【０００２】[0002]
【従来の技術】従来汚水等の処理、即ち汚水中に空気に
吹き込み、曝気により生物処理を行う場合、汚水の種別
等により汚水を撹拌曝気すると、多量の泡が発生するこ
とがある。特に近年、家庭廃水中に含有される洗剤等に
よりこの泡の発生が汚水処理に際して一つの問題となっ
ている。2. Description of the Related Art Conventionally, when treating sewage or the like, that is, by blowing air into the sewage and performing biological treatment by aeration, if the sewage is agitated and aerated depending on the type of the sewage, a large amount of bubbles may be generated. Particularly in recent years, the generation of bubbles has become one of the problems in treating sewage due to detergents contained in domestic wastewater.
【０００３】[0003]
【考案が解決しようとする課題】汚水の曝気において、
自吸式スクリュー曝気機が用いられる。これはスクリュ
ーの回動にてスクリュー先端水域に発生する負圧を利用
し、スクリューを固定した中空軸内を空気を流下させて
水中へ放気するもので、この空気の吸引は中空軸の上部
に穿孔して、中空軸内の負圧にて行っている。このた
め、汚水の撹拌曝気によって泡が発生し、これが徐々に
生長して水面上に盛り上がっていると、曝気機の軸カバ
ー内へも侵入し、これが中空軸の吸気孔を塞ぐようにな
り、吸気不能、もしくは吸気量が減少して充分な曝気が
行えなくなる。[Problems to be solved by the invention] In aeration of sewage,
A self-priming screw aerator is used. This utilizes the negative pressure generated in the water area at the tip of the screw due to the rotation of the screw, and allows air to flow down through the hollow shaft to which the screw is fixed, and to inject this air into the hollow shaft. It is perforated at a negative pressure in the hollow shaft. For this reason, bubbles are generated by aeration and aeration of sewage, and when it gradually grows and rises above the water surface, it also penetrates into the shaft cover of the aerator, which blocks the intake hole of the hollow shaft, Intake is impossible, or the amount of intake decreases and sufficient aeration cannot be performed.
【０００４】本考案は発生した泡が曝気機の軸カバー内
に侵入しても吸気孔を塞ぐことがないようにした曝気装
置を提供することを目的とする。An object of the present invention is to provide an aeration device which prevents the generated air from blocking the intake hole even if the generated bubbles enter the shaft cover of the aerator.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、本考案は、上部に吸気孔を、下端にスクリューを備
え、軸カバー内を貫通して配設した中空軸をモータによ
り回転駆動してスクリュー先端水域に生じる負圧を利用
して吸気口より吸気し、汚水中に空気を放出する曝気機
において、前記中空軸の吸気孔の下方位置において中空
軸と軸カバーの空間を閉塞する遮弊板を配設したことを
要旨とする。In order to achieve the above-mentioned object, according to the present invention, a hollow shaft provided with an intake hole at an upper part and a screw at a lower end and penetrating through a shaft cover is rotationally driven by a motor. In an aerator that uses the negative pressure generated in the water area at the tip of the screw to inhale air from the intake port and discharge air into the dirty water, a shield that closes the space between the hollow shaft and the shaft cover below the intake hole of the hollow shaft. The gist is to dispose this plate.
【０００６】[0006]
【作 用】下端にスクリューを備え、かつ水面より上方
の上部に吸気孔を穿孔した中空軸を曝気機の筒状をした
軸カバー内に挿通し、軸カバーの上部位置より吸気す
る。この時、軸カバー内において、かつ吸気孔の少なく
とも下方位置において中空軸と軸カバーの空間を閉塞す
る遮弊板を配設する。これにより、軸カバー内に吸引し
た空気は吸気孔より中空軸内へ吸引され、スクリュー下
端より水中へ放出されるが、汚水の撹拌にて発生した泡
が軸カバー内へ侵入してきても、中空軸の吸気孔下方位
置に配設した遮弊板にて、泡はそれ以上の侵入を阻止さ
れるので、吸気孔は塞がれることがなく、吸気を行い続
け、所定の曝気が行える。[Operation] A hollow shaft equipped with a screw at the lower end and having an intake hole drilled in the upper part above the water surface is inserted into the cylindrical shaft cover of the aerator, and air is taken in from the upper position of the shaft cover. At this time, in the shaft cover, and at least at a position below the intake hole, a blocking plate is provided to close the space between the hollow shaft and the shaft cover. As a result, the air sucked into the shaft cover is sucked into the hollow shaft through the intake hole and released into the water from the lower end of the screw, but even if the bubbles generated by stirring the dirty water enter the shaft cover, The bubble is prevented from further entering by the obstruction plate disposed below the intake hole of the shaft, so that the intake hole is not blocked and the intake is continued and a predetermined aeration can be performed.
【０００７】[0007]
【実施例】以下本考案曝気装置を図示の実施例にもとづ
いて説明する。図においてＡは本考案曝気装置の全体を
示し、架台より垂下した取付ブラケットＢにて曝気機の
フレームＦを支持し、水面に対し、先端のスクリューが
所定の深度に、また所定侵入角度となるようにして設置
される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The aeration apparatus of the present invention will be described below with reference to the illustrated embodiments. In the figure, A shows the whole aerator of the present invention, in which a frame F of the aerator is supported by a mounting bracket B hung from a pedestal, and a screw at the tip has a predetermined depth and a predetermined penetration angle with respect to the water surface. Is installed in this way.
【０００８】曝気機のフレームＦにはモータカバー１と
軸カバー２とを接合して支持するとともに、モータカバ
ー１内にモータ３を、軸カバー２内に中空軸４をそれぞ
れ納め、中空軸４の上端をモータ軸に固定し、モータ３
にて回動されるように支持する。The motor cover 1 and the shaft cover 2 are joined to and supported by the frame F of the aerator, and the motor 3 is housed in the motor cover 1 and the hollow shaft 4 is housed in the shaft cover 2. Fix the upper end of the to the motor shaft,
Support so that it can be rotated.
【０００９】中空軸４の下端には汚水を撹拌、及び曝気
するのに適した形状を有するスクリュー５が突設され、
常に水面より上方位置となる上部位置に吸気孔Ｈが穿孔
されるとともに、この吸気孔Ｈ位置にほぼ対向するよう
にして軸カバー２に曝気用空気取入口６が設けられる。
これは軸カバー２に空気取入管７を突設し、この管７の
上端を成長した泡の最高位置よりも上方位置となるよう
にして、その長さが定められる。At the lower end of the hollow shaft 4, a screw 5 having a shape suitable for stirring and aerating sewage is projected.
An intake hole H is formed at an upper position which is always above the water surface, and an aeration air intake 6 is provided in the shaft cover 2 so as to substantially face the intake hole H position.
The length is determined by projecting an air intake pipe 7 on the shaft cover 2 and setting the upper end of the pipe 7 to a position higher than the highest position of the grown bubbles.
【００１０】モータカバー１にも同様にして泡の最高位
置より上方位置にモータ冷却用の空気取入口８と冷却後
の空気吐出口９を設け、これによりモータの冷却を行わ
しめる。Similarly, the motor cover 1 is also provided with an air inlet 8 for cooling the motor and an air outlet 9 for cooling the motor above the highest position of the bubbles, thereby cooling the motor.
【００１１】中空軸４には吸気孔Ｈの下方位置、あるい
は吸気孔Ｈの下方と上方の両位置に遮弊板１０を突設す
る。この遮弊板１０は円板状で、中空軸４に固定され、
中空軸４とともに回動するが、その外周縁は軸カバー２
の内周面にほぼ近接して若干の隙間を有するも、軸カバ
ー内に侵入してくる泡が、この下部側の遮弊板１０にて
それ以上の侵入が阻止されるようになす。この遮弊板１
０の材質は、金属のほか、上記目的を達成すれば、その
材質として合成樹脂、ゴムその他を用いることができ
る。A shield plate 10 is provided on the hollow shaft 4 below the intake hole H or both above and below the intake hole H. The shielding plate 10 has a disc shape and is fixed to the hollow shaft 4,
Although it rotates with the hollow shaft 4, its outer peripheral edge has a shaft cover 2
Although there is a slight gap near the inner peripheral surface of the shaft, bubbles that enter the shaft cover are prevented from further entering by the shield plate 10 on the lower side. This barrier plate 1
As the material of 0, in addition to metal, synthetic resin, rubber or the like can be used as the material if the above object is achieved.
【００１２】また遮弊板１０は中空軸４に突設する代わ
りに軸カバー２内に、即ち中空軸を挿通する孔を中央に
穿孔した座金状としてこれを取り付けることも可能で、
同様な作用を有する。Further, the shielding plate 10 may be mounted in the shaft cover 2 instead of being projected on the hollow shaft 4, that is, as a washer having a hole for inserting the hollow shaft at the center.
It has a similar effect.
【００１３】[0013]
【考案の効果】本考案によれば、汚水の撹拌、曝気によ
って発生した泡が成長して軸カバー内に侵入してきて
も、遮弊板にてそれ以上の侵入が阻止され、吸気孔が閉
塞することを完全に防止することができ、吸気孔の吸気
量が減少することがなく、所定の曝気が行うことができ
る。According to the present invention, even if bubbles generated by agitation and aeration of sewage grow and enter the shaft cover, the obstruction plate prevents further intrusion and blocks the intake hole. This can be completely prevented, and a predetermined aeration can be performed without reducing the intake amount of the intake hole.
【図１】本考案の曝気装置の要部を示す拡大断面図であ
る。FIG. 1 is an enlarged sectional view showing a main part of an aeration device of the present invention.
【図２】同曝気装置の外観全体を示す正面図である。FIG. 2 is a front view showing the overall appearance of the aeration apparatus.
【図３】同側面図である。FIG. 3 is a side view of the same.
１ モータカバー ２ 軸カバー ３ モータ ４ 中空軸 ５ スクリュー ６ 空気取入口 １０ 遮弊板 Ｈ 吸気孔 1 Motor Cover 2 Shaft Cover 3 Motor 4 Hollow Shaft 5 Screw 6 Air Inlet 10 Barrier Plate H Intake Hole
Claims (1)
え、軸カバー内を貫通して配設した中空軸をモータによ
り回転駆動してスクリュー先端水域に生じる負圧を利用
して吸気口より吸気し、汚水中に空気を放出する曝気機
において、前記中空軸の吸気孔の下方位置において中空
軸と軸カバーの空間を閉塞する遮弊板を配設したことを
特徴とする曝気装置。1. A hollow shaft provided with an intake hole at an upper part and a screw at a lower end and penetrating the inside of a shaft cover is rotationally driven by a motor to utilize a negative pressure generated in a water region at the tip of the screw from an intake port. An aerator that inhales air and discharges air into dirty water, wherein an aeration device is provided at a position below an intake hole of the hollow shaft to close a space between the hollow shaft and the shaft cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991084735U JPH0646557Y2 (en) | 1991-09-20 | 1991-09-20 | Aeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991084735U JPH0646557Y2 (en) | 1991-09-20 | 1991-09-20 | Aeration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0528498U JPH0528498U (en) | 1993-04-16 |
| JPH0646557Y2 true JPH0646557Y2 (en) | 1994-11-30 |
Family
ID=13838956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991084735U Expired - Lifetime JPH0646557Y2 (en) | 1991-09-20 | 1991-09-20 | Aeration device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0646557Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59138432U (en) * | 1983-03-02 | 1984-09-14 | 日立機電工業株式会社 | liquid stirring device |
-
1991
- 1991-09-20 JP JP1991084735U patent/JPH0646557Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0528498U (en) | 1993-04-16 |
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