A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To improve recovery efficiency of an object to be recovered.SOLUTION: An air lift device 1 comprises: a riser tube 2; an aeration portion 3; an air supply portion supplying compressed air 5; a flange portion 6 provided at an outer periphery of a lower end side opening 2a of the riser tube 2; a separator connected to an upper end side opening of the riser tube 2; and a recovery portion recovering an object to be recovered. In the aeration portion 3, air injecting pipes 15 with a posture along a radial direction from an axial center position of the riser tube 2 are attached to a plurality of positions in a circumferential direction of a peripheral wall of the riser tube 2. Passages 17a, 17b corresponding to the upper limit value of a set particle size range of the object to be recovered are included between air injecting pipes 15 adjacent to a center portion of the riser tube 2 in a circumferential direction. When the air lift device 1 is used, water flow toward the lower end side opening 2a of the riser tube 2 is formed in a gap 23 between a water bottom 13 and the flange portion 6, and the object to be recovered 11 is sucked from the lower end side opening 2a into the riser tube 2 together with the water flow.SELECTED DRAWING: Figure 2
【課題】 回収対象物体の回収効率の向上化を図る。【解決手段】 エアリフト装置１は、ライザー管２と、散気部３と、圧縮空気５を供給する空気供給部と、ライザー管２の下端側開口２ａの外周に設けたフランジ部６と、ライザー管２の上端側開口に接続された分離器と、回収対象物体を回収する回収部とを備える。散気部３は、ライザー管２の軸心位置から放射方向に沿う姿勢の空気噴出管１５を、ライザー管２の周壁の周方向の複数個所に取り付けた構成を備える。ライザー管２の中央部と周方向に隣接する空気噴出管１５同士の間に、設定された回収対象物の粒径範囲の上限値に対応する通路１７ａ，１７ｂを備える。エアリフト装置１の使用時は、水底１３とフランジ部６との間の隙間２３に、ライザー管２の下端側開口２ａに向かう水の流れを形成し、その水の流れにのせて回収対象物体１１を下端側開口２ａからライザー管２へ吸入する。【選択図】図２
To improve recovery efficiency of an object to be recovered.SOLUTION: An air lift device 1 comprises: a riser tube 2; an aeration portion 3; an air supply portion supplying compressed air 5; a flange portion 6 provided at an outer periphery of a lower end side opening 2a of the riser tube 2; a separator connected to an upper end side opening of the riser tube 2; and a recovery portion recovering an object to be recovered. In the aeration portion 3, air injecting pipes 15 with a posture along a radial direction from an axial center position of the riser tube 2 are attached to a plurality of positions in a circumferential direction of a peripheral wall of the riser tube 2. Passages 17a, 17b corresponding to the upper limit value of a set particle size range of the object to be recovered are included between air injecting pipes 15 adjacent to a center portion of the riser tube 2 in a circumferential direction. When the air lift device 1 is used, water flow toward the lower end side opening 2a of the riser tube 2 is formed in a gap 23 between a water bottom 13 and the flange portion 6, and the object to be recovered 11 is sucked from the lower end side opening 2a into the riser tube 2 together with the water flow.SELECTED DRAWING: Figure 2
【課題】 回収対象物体の回収効率の向上化を図る。【解決手段】 エアリフト装置１は、ライザー管２と、散気部３と、圧縮空気５を供給する空気供給部と、ライザー管２の下端側開口２ａの外周に設けたフランジ部６と、ライザー管２の上端側開口に接続された分離器と、回収対象物体を回収する回収部とを備える。散気部３は、ライザー管２の軸心位置から放射方向に沿う姿勢の空気噴出管１５を、ライザー管２の周壁の周方向の複数個所に取り付けた構成を備える。ライザー管２の中央部と周方向に隣接する空気噴出管１５同士の間に、設定された回収対象物の粒径範囲の上限値に対応する通路１７ａ，１７ｂを備える。エアリフト装置１の使用時は、水底１３とフランジ部６との間の隙間２３に、ライザー管２の下端側開口２ａに向かう水の流れを形成し、その水の流れにのせて回収対象物体１１を下端側開口２ａからライザー管２へ吸入する。【選択図】図２
AIR LIFT DEVICE
エアリフト装置
NARISAWA MICHINORI (author)
2019-07-11
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING
/
C02F
Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm
,
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
/
F04F
PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED
,
Pumpen von Arbeitsfluiden durch unmittelbare Berührung mit einem anderen Arbeitsfluid oder durch Ausnutzung der Trägheit des zu pumpenden Arbeitsfluids