JPH11188386A - Aeration device - Google Patents
Aeration deviceInfo
- Publication number
- JPH11188386A JPH11188386A JP36821897A JP36821897A JPH11188386A JP H11188386 A JPH11188386 A JP H11188386A JP 36821897 A JP36821897 A JP 36821897A JP 36821897 A JP36821897 A JP 36821897A JP H11188386 A JPH11188386 A JP H11188386A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- treatment
- water
- sewage
- aerator
- 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.)
- Granted
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
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
(57)【要約】
【課題】 汚水の好気処理と嫌気処理とを選択的に切り
換えながら、かつ、好気処理と嫌気処理の両方を効率的
に、特に、処理槽の水深が大きくなっても、処理槽の底
部に位置する汚水の攪拌を確実に行うことができるよう
にした曝気装置を提供すること。
【解決手段】 スクリュー３１を正逆回転切換可能に構
成した曝気機３と、スクリュー３１の水面に対する設置
位置を調節するために曝気機３を移動調節可能に支持す
る昇降装置４と、スクリュー３１の外周を覆う水流用ガ
イドチューブ３５とより構成する。
(57) [Summary] [PROBLEMS] To selectively switch between aerobic treatment and anaerobic treatment of sewage and to efficiently perform both aerobic treatment and anaerobic treatment, especially when the water depth of the treatment tank becomes large. Another object of the present invention is to provide an aeration apparatus capable of reliably stirring sewage located at the bottom of a treatment tank. SOLUTION: An aerator 3 configured so that a screw 31 can be switched between forward and reverse rotations, an elevating device 4 that supports the aerator 3 so as to be movable and adjustable in order to adjust an installation position of the screw 31 with respect to a water surface, It is composed of a water flow guide tube 35 that covers the outer periphery.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、曝気装置に関し、
特に、汚水処理場において、汚水の好気処理と嫌気処理
とを選択的に切り換えることができるようにした曝気装
置に関するものである。TECHNICAL FIELD The present invention relates to an aeration apparatus,
In particular, the present invention relates to an aeration apparatus capable of selectively switching between aerobic treatment and anaerobic treatment of sewage in a sewage treatment plant.
【０００２】[0002]
【従来の技術】従来、汚水処理場においては、処理槽内
に流入した汚水の硝化と脱窒を行うために曝気装置と、
必要に応じて、攪拌装置を設置するようにしている。こ
のうち、曝気装置としては、例えば、図３に示すような
曝気機が用いられている。この曝気機１０３は、処理槽
１の上部に配設した架台又はスラブ２からブラケット１
０６を介して垂設し、モータ１０５により回転されるス
クリュー１３１のスクリュー軸１３２にスクリュー羽根
１３３を形成して構成するようにしている。そして、こ
の曝気機１０３は、スクリュー羽根１３３の下部のみを
水中に浸漬するように設置して、モータ１０５を回転す
ることにより、汚水を空気中に放出拡散するようにして
汚水の好気処理（硝化）を行うようにしている。2. Description of the Related Art Conventionally, in a sewage treatment plant, an aeration device for nitrifying and denitrifying sewage flowing into a treatment tank,
If necessary, a stirrer is installed. Among them, as the aeration device, for example, an aerator as shown in FIG. 3 is used. The aerator 103 is mounted on a gantry or slab 2 disposed above the treatment tank 1 by a bracket 1.
A screw blade 133 is formed on a screw shaft 132 of a screw 131 that is vertically installed via a motor 105 and rotated by a motor 105. The aerator 103 is installed so that only the lower part of the screw blade 133 is immersed in water, and by rotating the motor 105, the sewage is released and diffused into the air to perform aerobic treatment of the sewage ( Nitrification).
【０００３】しかしながら、この曝気機１０３は、汚水
の好気処理（硝化）を行うものであって、嫌気処理（脱
窒）を効率的に行うことができないという問題点があっ
た。[0003] However, this aerator 103 is for performing aerobic treatment (nitrification) of sewage, and has a problem that it cannot perform anaerobic treatment (denitrification) efficiently.
【０００４】[0004]
【発明が解決しようとする課題】この問題点に対処する
ため、曝気機のスクリューを、モータにより正逆回転切
換可能に構成し、モータを正回転することにより、汚水
を空気中に放出拡散するようにして好気処理を行い、一
方、モータを逆回転することにより、汚水を水中に放出
拡散するようにして嫌気処理を行うようにした曝気機も
提案されてはいるが、好気処理と嫌気処理の両方を効率
的に行うことができるものはなく、特に、処理槽の水深
が深くなると、処理槽の底部に位置する汚水の攪拌を行
うことができないという問題点があった。In order to solve this problem, the screw of the aerator is configured to be switchable between forward and reverse rotations by a motor, and the forward rotation of the motor discharges and diffuses wastewater into the air. Aerating treatment is performed as described above, while an aerator that performs anaerobic treatment by rotating the motor in the reverse direction to release and diffuse sewage into water has also been proposed. There is nothing that can perform both anaerobic treatments efficiently, and in particular, when the water depth of the treatment tank is deep, there is a problem that the sewage located at the bottom of the treatment tank cannot be stirred.
【０００５】本発明は、上記従来の曝気機の有する問題
点に鑑み、汚水の好気処理と嫌気処理とを選択的に切り
換えながら、かつ、好気処理と嫌気処理の両方を効率的
に、特に、処理槽の水深が深くなっても、処理槽の底部
に位置する汚水の攪拌を確実に行うことができるように
した曝気装置を提供することを目的とする。The present invention has been made in view of the above-mentioned problems of the conventional aerator, and selectively switches between aerobic treatment and anaerobic treatment of sewage while efficiently performing both aerobic treatment and anaerobic treatment. In particular, an object of the present invention is to provide an aeration apparatus capable of surely stirring sewage located at the bottom of a treatment tank even when the water depth of the treatment tank increases.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明の曝気装置は、スクリューを正逆回転切換可
能に構成した曝気機と、前記スクリューの水面に対する
設置位置を調節するために曝気機を移動調節可能に支持
する昇降装置と、スクリューの外周を覆う水流用ガイド
チューブとより構成したことを特徴とする。In order to achieve the above object, an aerator according to the present invention comprises an aerator capable of switching a screw between forward and reverse rotations, and an aerator for adjusting an installation position of the screw with respect to a water surface. It is characterized by comprising an elevating device for supporting the machine so as to be movable and adjustable, and a water flow guide tube for covering the outer periphery of the screw.
【０００７】この曝気装置は、スクリューの水面に対す
る設置位置を調節した後、モータを正回転することによ
り、汚水を空気中に放出拡散するようにして好気処理を
行い、一方、スクリューの水面に対する設置位置を再調
節した後、モータを逆回転することにより、汚水を水中
に放出拡散するようにして嫌気処理を行うようにするこ
とにより、好気処理と嫌気処理の両方を効率的に行うこ
とができるとともに、スクリューの外周を覆う水流用ガ
イドチューブにより、処理槽の底部に位置する汚水の水
流を確保して、処理槽の底部に位置する汚水の攪拌を行
うことができる。ここで、モータの「正回転」及び「逆
回転」は、相対的な関係を示すのみで、特別の意味合い
を有するものではない。In this aeration device, after adjusting the installation position of the screw with respect to the water surface, the motor is rotated forward to perform aerobic treatment by discharging and diffusing sewage into the air. After re-adjusting the installation position, reverse rotation of the motor to release and diffuse sewage into water and perform anaerobic treatment, so that both aerobic treatment and anaerobic treatment are performed efficiently In addition to the above, the water flow guide tube that covers the outer periphery of the screw secures the water flow of the sewage located at the bottom of the treatment tank, and can stir the sewage located at the bottom of the treatment tank. Here, “forward rotation” and “reverse rotation” of the motor only indicate a relative relationship and have no special meaning.
【０００８】この場合において、昇降装置に、スクリュ
ーの回転方向の切り換えに応じて曝気機を移動調節する
自動調節機構を配設することができる。In this case, the lifting device can be provided with an automatic adjustment mechanism for moving and adjusting the aerator in accordance with the switching of the rotation direction of the screw.
【０００９】これにより、スクリューの水面に対する設
置位置の調節を、スクリューの回転方向の切り換えに応
じて自動的に行うことができ、曝気装置の誤操作をなく
すとともに、操作を簡単に行うことができる。Thus, the installation position of the screw with respect to the water surface can be automatically adjusted in accordance with the switching of the rotation direction of the screw, and erroneous operation of the aeration device can be eliminated, and the operation can be easily performed.
【００１０】また、水深４ｍ以上の処理槽の場合に、水
流用ガイドチューブの長さを、処理槽の水深の５０％以
上に形成することができる。In the case of a treatment tank having a water depth of 4 m or more, the length of the guide tube for water flow can be formed to be 50% or more of the water depth of the treatment tank.
【００１１】これにより、スクリューの外周を覆う水流
用ガイドチューブにより、処理槽の底部に位置する汚水
の水流を確保して、処理槽の水深が４ｍ以上と大きい場
合でも、処理槽の底部に位置する汚水の攪拌を確実に行
うことができる。Thus, the water flow guide tube that covers the outer periphery of the screw secures the water flow of the sewage located at the bottom of the treatment tank, so that even if the water depth of the treatment tank is as large as 4 m or more, the water can be positioned at the bottom of the treatment tank. The wastewater can be reliably stirred.
【００１２】また、スクリューのスクリュー羽根を、少
なくとも、スクリュー軸の基端近傍と、先端近傍に形成
することができる。Further, the screw blade of the screw can be formed at least near the base end and near the tip end of the screw shaft.
【００１３】これにより、スクリューの水面に対する設
置位置を調節した後、モータを正回転することにより、
汚水を空気中に放出拡散するようにして行う好気処理
と、モータを逆回転することにより、汚水を水中に放出
拡散するようにして行う嫌気処理の処理効率を向上する
ことができる。[0013] Thus, after adjusting the installation position of the screw with respect to the water surface, by rotating the motor forward,
It is possible to improve the processing efficiency of the aerobic treatment in which the sewage is released and diffused into the air and the anaerobic treatment in which the sewage is released and diffused in the water by reversely rotating the motor.
【００１４】[0014]
【発明の実施の形態】以下、本発明の曝気装置の実施の
形態を図面に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the aeration apparatus of the present invention will be described below with reference to the drawings.
【００１５】図１〜図２に、本発明の曝気装置の一実施
例を示す。この曝気装置は、汚水の好気処理（図１参
照）と嫌気処理（図２参照）とを選択的に切り換えなが
ら、かつ、好気処理と嫌気処理の両方を効率的に行うこ
とができるようにしたもので、モータ５により正逆回転
切換可能に回転されるスクリュー３１のスクリュー軸３
２に基端近傍に上部スクリュー羽根３３を、先端近傍に
下部スクリュー羽根３４をそれぞれ形成して構成した曝
気機３を、処理槽１の上部に配設した架台又はスラブ２
（以下、「スラブ２」という。）に、ブラケット６を介
して垂設し、スラブ２とブラケット６間に、スクリュー
３１の水面に対する設置位置を調節するために、ブラケ
ット６を介して曝気機３を移動調節可能に支持する昇降
装置４を配設するとともに、スクリュー３１の外周を水
流用ガイドチューブ３５により覆って構成するようにし
ている。1 and 2 show an embodiment of the aeration apparatus according to the present invention. This aeration apparatus can efficiently perform both aerobic treatment and anaerobic treatment while selectively switching between aerobic treatment (see FIG. 1) and anaerobic treatment (see FIG. 2) of wastewater. The screw shaft 3 of the screw 31 rotated by the motor 5 so as to be capable of switching between forward and reverse rotations.
2, an aerator 3 formed by forming an upper screw blade 33 near the base end and a lower screw blade 34 near the tip end is mounted on a gantry or slab 2 disposed above the treatment tank 1.
(Hereinafter, referred to as "slab 2") via a bracket 6, and an aerator 3 is provided between the slab 2 and the bracket 6 via the bracket 6 to adjust the installation position of the screw 31 with respect to the water surface. The lifting device 4 for supporting the movement of the screw 31 is provided, and the outer periphery of the screw 31 is covered with a water flow guide tube 35.
【００１６】上部スクリュー羽根３３は、昇降装置４に
より、スクリュー３１の水面に対する設置位置を調節
（上昇）することにより、上部スクリュー羽根３３の下
部のみを水中に浸漬するように設置した状態で、モータ
５を正回転することにより、汚水を空気中に放出拡散す
るようにして好気処理を行うことができる所要の形状に
形成する。The upper screw blade 33 is adjusted (elevated) by the elevating device 4 to adjust the mounting position of the screw 31 with respect to the water surface, so that only the lower portion of the upper screw blade 33 is immersed in water. By rotating the 5 forward, waste water is discharged and diffused into the air to form a required shape capable of performing aerobic treatment.
【００１７】一方、下部スクリュー羽根３４は、昇降装
置４により、スクリュー３１の水面に対する設置位置を
調節（下降）することにより、上部スクリュー羽根３３
の全体を水中に浸漬するように設置した状態で、モータ
５を逆回転することにより、汚水を水中に放出拡散する
ようにして嫌気処理を行うことができる螺旋スクリュー
状に形成するようにする。On the other hand, the lower screw blade 34 adjusts the position of the screw 31 with respect to the water surface (down) by the elevating device 4 so that the upper screw blade 33 is moved.
By rotating the motor 5 in the reverse direction in a state where the whole is installed so as to be immersed in the water, the sewage is discharged and diffused into the water so as to form a spiral screw which can be subjected to anaerobic treatment.
【００１８】スクリュー３１の外周を覆う水流用ガイド
チューブ３５は、その上端を曝気機３の固定側に固定し
て、昇降装置４により、曝気機３と共に移動するように
する。そして、この水流用ガイドチューブ３５は、好気
処理時及び嫌気処理時において、モータ５により回転さ
れるスクリュー３１の上部スクリュー羽根３３及び下部
スクリュー羽根３４により発生する水流により、処理槽
１の底部に位置する汚水の水流を確保して、処理槽１の
底部に位置する汚水の攪拌を行うようにするものであ
る。The water flow guide tube 35 covering the outer periphery of the screw 31 has its upper end fixed to the fixed side of the aerator 3 and is moved by the lifting device 4 together with the aerator 3. The water flow guide tube 35 is provided at the bottom of the treatment tank 1 by the water flow generated by the upper screw blade 33 and the lower screw blade 34 of the screw 31 rotated by the motor 5 during the aerobic treatment and the anaerobic treatment. The flow of the sewage located is ensured, and the sewage located at the bottom of the treatment tank 1 is stirred.
【００１９】この場合、水流用ガイドチューブ３５は、
処理槽１の水深が４ｍ以上の場合には、その長さを、処
理槽の水深の５０％以上（本実施例では７５％）に形成
することが好ましく、これにより、処理槽１の底部に位
置する汚水の攪拌を確実に行うことができるものとな
る。また、水流用ガイドチューブ３５の下端は、処理槽
１の底部に位置する汚水の攪拌を確実に行うことができ
るように、やや拡径した朝顔形状に形成することが好ま
しい。In this case, the water flow guide tube 35 is
When the water depth of the treatment tank 1 is 4 m or more, it is preferable that the length is formed to be 50% or more (75% in this embodiment) of the water depth of the treatment tank. The located wastewater can be reliably stirred. Further, the lower end of the water flow guide tube 35 is preferably formed in a slightly enlarged morning glory shape so that the sewage located at the bottom of the treatment tank 1 can be surely stirred.
【００２０】昇降装置４は、油空圧式又は機械式の昇降
機構からなり、必要に応じて、スクリュー３１の回転方
向の切り換えに応じて曝気機３を移動調節する自動調節
機構を配設することができる。これにより、スクリュー
３１の水面に対する設置位置の調節を、スクリュー３１
の回転方向の切り換えに応じて自動的に行うことがで
き、曝気装置の誤操作をなくすとともに、操作を簡単に
行うことができるものとなる。なお、スクリュー３１の
水面に対する設置位置の調節、すなわち、昇降装置４の
調節は、上昇時（好気処理時）に、上部スクリュー羽根
３３の下部のみを水中に浸漬するように、また、下降時
（嫌気処理時）に、上部スクリュー羽根３３のの全体を
水中に浸漬するようにして設定するようにする。The lifting / lowering device 4 is composed of a hydraulic / pneumatic or mechanical lifting / lowering mechanism, and if necessary, has an automatic adjusting mechanism for moving and adjusting the aerator 3 in accordance with switching of the rotation direction of the screw 31. Can be. Thereby, the adjustment of the installation position of the screw 31 with respect to the water surface is
Can be automatically performed in accordance with the switching of the rotation direction of the aerating device, and the erroneous operation of the aeration device can be eliminated, and the operation can be easily performed. The adjustment of the installation position of the screw 31 with respect to the water surface, that is, the adjustment of the elevating device 4 is performed such that only the lower part of the upper screw blade 33 is immersed in water when ascending (at the time of aerobic treatment). At the time of the anaerobic treatment, the entire upper screw blade 33 is set so as to be immersed in water.
【００２１】以下、この曝気装置の作用について説明す
る。汚水の好気処理を行う場合には、図１に示すよう
に、昇降装置４により、スクリュー３１の水面に対する
設置位置を調節（上昇）し、上部スクリュー羽根３３の
下部のみを水中に浸漬するように設置した状態で、モー
タ５を正回転する。これにより、スクリュー３１の上部
スクリュー羽根３３及び下部スクリュー羽根３４により
発生する上向きの水流により、処理槽１の底部に位置す
る汚水の水流を確保して、処理槽１の底部に位置する汚
水の攪拌を行うことができるとともに、上向きの水流
は、水流用ガイドチューブ３５内を通って水面位置まで
上昇し、上部スクリュー羽根３３にて、空気中に放出拡
散され、好気処理を行うことができる。Hereinafter, the operation of the aeration apparatus will be described. When performing aerobic treatment of sewage, as shown in FIG. 1, the installation position of the screw 31 with respect to the water surface is adjusted (elevated) by the elevating device 4 so that only the lower portion of the upper screw blade 33 is immersed in water. , The motor 5 is rotated forward. As a result, the upward flow of water generated by the upper screw blades 33 and the lower screw blades 34 of the screw 31 secures the flow of sewage located at the bottom of the treatment tank 1 and agitates the sewage located at the bottom of the treatment tank 1. The upward water flow passes through the water flow guide tube 35, rises to the water surface position, is released and diffused into the air by the upper screw blades 33, and can be subjected to aerobic treatment.
【００２２】一方、汚水の嫌気処理を行う場合には、図
２に示すように、昇降装置４により、スクリュー３１の
水面に対する設置位置を調節（下降）し、上部スクリュ
ー羽根３３の全体を水中に浸漬するように設置した状態
で、モータ５を逆回転する。これにより、スクリュー３
１の上部スクリュー羽根３３及び下部スクリュー羽根３
４により発生する下向きの水流は、水流用ガイドチュー
ブ３５を通ってその下端位置まで下降し、水中に放出拡
散され、嫌気処理を行うことができるとともに、処理槽
１の底部に位置する汚水の水流を確保して、処理槽１の
底部に位置する汚水の攪拌を行うことができる。On the other hand, when performing anaerobic treatment of sewage, as shown in FIG. 2, the installation position of the screw 31 with respect to the water surface is adjusted (downward) by the elevating device 4, and the entire upper screw blade 33 is submerged. The motor 5 is rotated reversely in a state where the motor 5 is installed so as to be immersed. Thereby, the screw 3
1 upper screw blade 33 and lower screw blade 3
The downward water flow generated by the water flow 4 descends to the lower end position through the water flow guide tube 35, is released and diffused into the water, can perform anaerobic treatment, and is the wastewater flow located at the bottom of the treatment tank 1. And the agitation of the wastewater located at the bottom of the treatment tank 1 can be performed.
【００２３】[0023]
【発明の効果】本発明の曝気装置によれば、スクリュー
の水面に対する設置位置を調節した後、モータを正回転
することにより、汚水を空気中に放出拡散するようにし
て好気処理を行い、一方、スクリューの水面に対する設
置位置を再調節した後、モータを逆回転することによ
り、汚水を水中に放出拡散するようにして嫌気処理を行
うようにすることにより、好気処理と嫌気処理の両方を
効率的に行うことができるとともに、スクリューの外周
を覆う水流用ガイドチューブにより、処理槽の底部に位
置する汚水の水流を確保して、処理槽の底部に位置する
汚水の攪拌を行うことができ、効果的な汚水処理を行う
ことができる。According to the aeration apparatus of the present invention, after adjusting the installation position of the screw with respect to the water surface, the motor is rotated forward to perform aerobic treatment by discharging and diffusing sewage into the air. On the other hand, by re-adjusting the installation position of the screw with respect to the water surface, by reversely rotating the motor, anaerobic treatment is performed by discharging and diffusing wastewater into water, so that both aerobic treatment and anaerobic treatment are performed. Can be efficiently performed, and the water flow guide tube covering the outer periphery of the screw secures the water flow of the sewage located at the bottom of the treatment tank and stirs the sewage located at the bottom of the treatment tank. And effective sewage treatment can be performed.
【００２４】また、昇降装置に、スクリューの回転方向
の切り換えに応じて曝気機を移動調節する自動調節機構
を配設することにより、スクリューの水面に対する設置
位置の調節を、スクリューの回転方向の切り換えに応じ
て自動的に行うことができ、曝気装置の誤操作をなくす
とともに、操作を簡単に行うことができる。In addition, by providing an automatic adjusting mechanism for moving and adjusting the aerator in accordance with the switching of the rotation direction of the screw, the adjustment of the installation position of the screw with respect to the water surface can be performed by switching the rotation direction of the screw. The operation can be automatically performed in accordance with the condition, and erroneous operation of the aeration device can be eliminated, and the operation can be easily performed.
【００２５】また、水深４ｍ以上の処理槽の場合に、水
流用ガイドチューブの長さを、処理槽の水深の５０％以
上に形成することにより、スクリューの外周を覆う水流
用ガイドチューブにより、処理槽の底部に位置する汚水
の水流を確保して、処理槽の水深が４ｍ以上と大きい場
合でも、処理槽の底部に位置する汚水の攪拌を確実に行
うことができる。In the case of a treatment tank having a water depth of 4 m or more, the length of the guide tube for water flow is set to be 50% or more of the water depth of the treatment tank, so that the guide tube for water flow covering the outer periphery of the screw is used. Even when the water depth of the treatment tank is as large as 4 m or more, the sewage water located at the bottom of the treatment tank can be reliably stirred even if the water flow of the wastewater located at the bottom of the tank is secured.
【００２６】また、スクリューのスクリュー羽根を、少
なくとも、スクリュー軸の基端近傍と、先端近傍に形成
することにより、スクリューの水面に対する設置位置を
調節した後、モータを正回転することにより、汚水を空
気中に放出拡散するようにして行う好気処理と、モータ
を逆回転することにより、汚水を水中に放出拡散するよ
うにして行う嫌気処理の処理効率を向上することができ
る。Further, the screw blades of the screw are formed at least near the base end and near the tip of the screw shaft, so that the installation position of the screw with respect to the water surface is adjusted. The processing efficiency of the aerobic treatment performed to release and diffuse into the air and the anaerobic treatment performed to release and diffuse sewage into water can be improved by reversely rotating the motor.
【図１】本発明の曝気装置の一実施例（好気処理時）を
示す説明図である。FIG. 1 is an explanatory diagram showing an embodiment of an aeration apparatus of the present invention (during aerobic treatment).
【図２】本発明の曝気装置の一実施例（嫌気処理時）を
示す説明図である。FIG. 2 is an explanatory diagram showing one embodiment of the aeration apparatus of the present invention (during anaerobic processing).
【図３】従来の曝気機の説明図である。FIG. 3 is an explanatory diagram of a conventional aerator.
１ 処理槽 ２ 架台又はスラブ ３ 曝気機 ３１ スクリュー ３２ スクリュー軸 ３３ 上部スクリュー羽根 ３４ 下部スクリュー羽根 ３５ 水流用ガイドチューブ ４ 昇降装置 ５ モータ ６ ブラケット DESCRIPTION OF SYMBOLS 1 Processing tank 2 Mount or slab 3 Aerator 31 Screw 32 Screw shaft 33 Upper screw blade 34 Lower screw blade 35 Water flow guide tube 4 Lifting device 5 Motor 6 Bracket
Claims (4)
た曝気機と、前記スクリューの水面に対する設置位置を
調節するために曝気機を移動調節可能に支持する昇降装
置と、スクリューの外周を覆う水流用ガイドチューブと
より構成したことを特徴とする曝気装置。An aerator having a screw switchable between forward and reverse rotations, an elevating device for movably supporting the aerator for adjusting an installation position of the screw with respect to a water surface, and a water flow covering an outer periphery of the screw. An aeration apparatus characterized by comprising a guide tube for use.
り換えに応じて曝気機を移動調節する自動調節機構を配
設したことを特徴とする請求項１記載の曝気装置。2. The aeration device according to claim 1, wherein an automatic adjustment mechanism for moving and adjusting the aeration device in accordance with the switching of the rotation direction of the screw is provided in the lifting device.
ガイドチューブの長さを、処理槽の水深の５０％以上に
形成したことを特徴とする請求項１又は２記載の曝気装
置。3. The aeration apparatus according to claim 1, wherein, in the case of a treatment tank having a water depth of 4 m or more, the length of the water flow guide tube is formed to be 50% or more of the water depth of the treatment tank.
とも、スクリュー軸の基端近傍と、先端近傍に、それぞ
れ形成したことを特徴とする請求項１、２又は３記載の
曝気装置。4. The aeration apparatus according to claim 1, wherein the screw blades of the screw are formed at least near the proximal end and near the distal end of the screw shaft, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36821897A JP3637195B2 (en) | 1997-12-26 | 1997-12-26 | Aeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36821897A JP3637195B2 (en) | 1997-12-26 | 1997-12-26 | Aeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11188386A true JPH11188386A (en) | 1999-07-13 |
| JP3637195B2 JP3637195B2 (en) | 2005-04-13 |
Family
ID=18491256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36821897A Expired - Fee Related JP3637195B2 (en) | 1997-12-26 | 1997-12-26 | Aeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3637195B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1277706A3 (en) * | 2001-07-16 | 2004-09-29 | Hitachi Kiden Kogyo Ltd. | Aerator for aerobic and anaerobic water treatment |
| EP1937396A2 (en) * | 2005-10-19 | 2008-07-02 | Waterix Oy | Cooler |
| JP2008212769A (en) * | 2007-02-28 | 2008-09-18 | Hitachi Plant Technologies Ltd | Aerator |
| FR2921849A1 (en) * | 2007-10-08 | 2009-04-10 | Raymond Berchotteau | Liquid circulating device for diffusion of e.g. air, in liquid of basin, has propeller coaxial to shaft and canalizing gas in shaft from top to bottom, and blades diffusing gas towards liquid that is admitted via passage located in liquid |
| JP2009178619A (en) * | 2008-01-29 | 2009-08-13 | Hitachi Plant Technologies Ltd | Aeration stirrer |
| CN101973665A (en) * | 2010-09-28 | 2011-02-16 | 天津市天水环保设计工程有限公司 | A/O reactor with functions of air lift, backflow as well as rotation and mixing of reflux |
| WO2015137410A1 (en) * | 2014-03-12 | 2015-09-17 | 株式会社アクアテックス | Processing device |
| US10828598B2 (en) | 2014-10-09 | 2020-11-10 | Carbonreuse Finland Oy | Arrangement and process for recovery of carbon dioxide from gas using an absorption tank housing and agitator |
| CN113800655A (en) * | 2021-09-27 | 2021-12-17 | 北京泽通水务建设有限公司 | Push away STREAMING aeration machine revetment slide rail mount |
| CN114772843A (en) * | 2022-03-28 | 2022-07-22 | 广州亿新建设集团有限公司 | Method and device for increasing pH of preserved fruit processing wastewater |
-
1997
- 1997-12-26 JP JP36821897A patent/JP3637195B2/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1277706A3 (en) * | 2001-07-16 | 2004-09-29 | Hitachi Kiden Kogyo Ltd. | Aerator for aerobic and anaerobic water treatment |
| EP2292322A3 (en) * | 2005-10-19 | 2011-03-30 | Waterix Oy | Apparatus for the aeration and/or mixing of water and its use |
| EP1937396A2 (en) * | 2005-10-19 | 2008-07-02 | Waterix Oy | Cooler |
| EP2266683A3 (en) * | 2005-10-19 | 2011-03-30 | Waterix Oy | Apparatus for the cooling and/or condensation and/or aeration and/or mixing of water and its use |
| JP2008212769A (en) * | 2007-02-28 | 2008-09-18 | Hitachi Plant Technologies Ltd | Aerator |
| FR2921849A1 (en) * | 2007-10-08 | 2009-04-10 | Raymond Berchotteau | Liquid circulating device for diffusion of e.g. air, in liquid of basin, has propeller coaxial to shaft and canalizing gas in shaft from top to bottom, and blades diffusing gas towards liquid that is admitted via passage located in liquid |
| JP2009178619A (en) * | 2008-01-29 | 2009-08-13 | Hitachi Plant Technologies Ltd | Aeration stirrer |
| CN101973665A (en) * | 2010-09-28 | 2011-02-16 | 天津市天水环保设计工程有限公司 | A/O reactor with functions of air lift, backflow as well as rotation and mixing of reflux |
| WO2015137410A1 (en) * | 2014-03-12 | 2015-09-17 | 株式会社アクアテックス | Processing device |
| US10828598B2 (en) | 2014-10-09 | 2020-11-10 | Carbonreuse Finland Oy | Arrangement and process for recovery of carbon dioxide from gas using an absorption tank housing and agitator |
| CN113800655A (en) * | 2021-09-27 | 2021-12-17 | 北京泽通水务建设有限公司 | Push away STREAMING aeration machine revetment slide rail mount |
| CN113800655B (en) * | 2021-09-27 | 2023-09-08 | 北京泽通水务建设有限公司 | Push away STREAMING aeration machine revetment slide rail mount |
| CN114772843A (en) * | 2022-03-28 | 2022-07-22 | 广州亿新建设集团有限公司 | Method and device for increasing pH of preserved fruit processing wastewater |
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| Publication number | Publication date |
|---|---|
| JP3637195B2 (en) | 2005-04-13 |
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