Compressed air jetting mechanism, and conduit and sedimentation basin using the same
AssigneeUtsunomiya Kogyo Co., Ltd.
InventorHideo UTSUNOMIYA
Life of this patent
Estimating the term…
Abstract
A compressed air jetting mechanism 10 is provided on side walls 5 in a longitudinal direction inside a conduit body 2 along the longitudinal direction of the conduit body 2 at slightly under scum layer S generated in the conduit body 2, the scum S can be peeled off from the side walls 5 of the conduit body 2 when bubbles jetted out from the compressed air jetting mechanism 10a rise, and a nozzle 8b jetting pressure water out toward an upper surface of the generated scum layer S to promote a flow of the scum layer S to face a scum pit 3 is provided, so that the scum layer S can be promptly discharged to the scum pit 3.
Claims9
A compressed air jetting mechanism comprising
- a pipe wherein a circumference wall is formed of an elastic material, having at least one slit penetrating the circumference wall, and disposed in water, and
- a compressed air supply system connected to the pipe to supply compressed air having higher pressure than pressure in water where the pipe is provided into the pipe,
- wherein the slit is closed when the pressure in the pipe is equal to or smaller than the water pressure, and opened when the compressed air is supplied to the pipe.
A conduit distributing and supplying raw water to a sedimentation basin provided with a sewage treatment plant, comprising
- a conduit body into which the raw water flows, and a compressed air jetting mechanism which is provided along a longitudinal direction of the conduit body that is inside a side wall formed along the longitudinal direction of the conduit body, and below a scum layer occurred in the conduit body, wherein
- the compressed air jetting mechanism is capable of jetting out compressed air from a plurality of points in the longitudinal direction into water.
A sedimentation basin comprising a pipe-type scum removing mechanism provided at a sewage treatment plant, wherein
- the pipe-system scum removing mechanism has a compressed air jetting mechanism on a wall surface of a pipe body at a side where the scum flows between wall surfaces forming an opening part when a part of the opening part provided on the pipe body is sank in water to remove the scum to jet out the air along the wall surface,
- the compressed air jetting mechanism is provided with a pipe wherein a circumference wall is formed of an elastic material, having at least one slit penetrating the circumference wall, and a compressed air supply system connected to the pipe to supply compressed air having higher pressure than pressure in water where the pipe is provided into the pipe, and
- the slit is closed when the pressure in the pipe is equal to or smaller than the water pressure, and opened when the compressed air is supplied to the pipe.
Dependencies are inferred from the claim text.