JPS6262000U - - Google Patents

Description

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

第１図は本考案の一実施例における揚砂装置の
断面図、第２図は同揚砂装置の副混気ジエツトノ
ズルの拡大断面図、第３図は従来の揚砂装置の断
面図である。 １１……吸込管、１２……主混気ジエツトノズ
ル、１３……圧力水供給管、１４……空気供給管
、１７……副混気ジエツトノズル、１８……圧力
水供給分岐管、１９……空気供給分岐管。 Fig. 1 is a sectional view of a sand lifting device according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of a sub-air mixture jet nozzle of the sand lifting device, and Fig. 3 is a sectional view of a conventional sand lifting device. . 11... Suction pipe, 12... Main air mixture jet nozzle, 13... Pressure water supply pipe, 14... Air supply pipe, 17... Sub-air mixture jet nozzle, 18... Pressure water supply branch pipe, 19... Air Supply branch pipe.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 吸込管と、この吸込管の適所より内部に混気ジ
エツト流を噴射する主混気ジエツトノズルと、こ
の主混気ジエツトノズルに圧力水を供給する圧力
水供給管と、前記主混気ジエツトノズルに空気を
供給する空気供給管と、前記吸込管の先端より内
部に混気ジエツト流を噴射する副混気ジエツトノ
ズルと、前記圧力水供給管より分岐して前記副混
気ジエツトノズルに圧力水を供給する圧力水供給
分岐管と、前記空気供給管より分岐して前記副混
気ジエツトノズルに空気を供給する空気供給分岐
管とを備えた揚砂装置。 A suction pipe, a main air mixture jet nozzle that injects an air mixture jet flow into the interior from a proper position of the suction pipe, a pressure water supply pipe that supplies pressurized water to the main air mixture jet nozzle, and a pressure water supply pipe that supplies air to the main air mixture jet nozzle. an air supply pipe, a sub-air mixture jet nozzle that injects an air-fuel mixture jet flow into the interior from the tip of the suction pipe, and pressure water that branches from the pressure water supply pipe and supplies pressure water to the sub-air mixture jet nozzle. A sand lifting device comprising: a supply branch pipe; and an air supply branch pipe that branches from the air supply pipe and supplies air to the sub-air mixture jet nozzle.