Subsea blower device comprising at least one nozzle, at least one propel arranged to provide the nozzle with water, further comprising a chassis with belts for movement of the device along the seafloor. The device typically has at least one arm pivotally attached to the chassis so that the position of the arm in relation to a horizontal plane is adjustable, while the nozzle is attached to the arm.
E02F 3/88 - Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
E02F 5/10 - Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for making or assembling conduits or for laying conduits or cables
E02F 5/28 - Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other waters
Method for removing sediments comprising fine-grained material as well as rocks and boulders with a diameter of at least 10 cm deposited at inlets or hatches in an intake dam through a pipe construction (1), wherein: - the pipe construction (1) is established with aa circular cross-section and an inlet opening (3) in front of the intake or hatch (5) and an outlet opening (8) outside a dam wall (2) at a height lower than the water level in the intake dam and with a water trap (9) at its lower end, while being so dimensioned that the velocity equals or exceeds the velocity given by Durand's formula for flow rate: (I), where k = a constant 0.8; g = acceleration of gravity 9.81 m/s2; D = internal diameter; and Ss = relative specific gravity of sediments, while the pipe construction (1) in a high intermediate area is arranged over an overflow threshold (2b) in the dam wall (2) and with a vent opening (7) upstream of the overflow threshold (2b).
The present invention relates to a. new method for storing CO2 in the form of naturally bound carbon over a long period of time. More specifically the invention relates to a method for storing organic material in bogs to reduce CO2 in the atmosphere. The method, comprises the steps of providing organic material, mixing the organic material with water to form a pumpable slurry, pumping the slurry into a bog through one or more pipes, monitoring the bog and taking measures if required to maintain its conservation capabilities.
Subsea blower device (10) comprising at least one nozzle (16), at least one propel (15) arranged to provide the nozzle (16) with water, further comprising a chassis (11) with belts (12) for movement of the device along the seafloor. The device typically has at least one arm (13) pivotally attached to the chassis (11) so that the position of the arm in relation to a horizontal plane is adjustable, while the nozzle (16) is attached to the arm (13).
E02F 5/10 - Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for making or assembling conduits or for laying conduits or cables
E02F 5/28 - Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other waters
Device for removal of sediment from inside piles being at least partly immersed in water, comprising an outer guiding unit arranged to be temporarily positioned on the top of a pile. The outer guiding unit envelopes at least one inner dredging unit being arranged to be lowered from within the outer guiding unit, the inner dredging unit at its lower end exhibiting movable jet nozzles arranged to loosen sediment. The inner dredging unit furthermore comprises a central passage which is connected to a discharge hose arranged to transport loosened sediment therefrom.
Device (10) for removal of sediment from inside piles (40) being at least partly immersed in water, comprising an outer guiding unit (11) arranged to be temporarily positioned on the top of a pile. The outer guiding unit (11) envelopes at least one inner dredging unit (12) being arranged to be lowered from within the outer guiding unit, the inner dredging unit (12) at its lower end exhibiting movable jet nozzles (34) arranged to loosen sediment The inner dredging unit (12) furthermore comprises a central passage (35) which is connected to a discharge hose (16) arranged to transport loosened sediment therefrom.
Subsea device (10) with vertical axis (11) for removal of sediment, comprising a pump unit (30) which supplies pressurized water to a nozzle assembly (40) and nozzle assembly (40) comprising a central nozzle (41). The nozzle assembly (40) furthermore comprises at least two additional nozzles (42) directed with an inclination in relation to the central nozzle (41) and arranged angularly symmetric in relation to the vertical axis (11) of the device.
Device for dredging in water reservoirs, comprising a suction head (2) with at least one lower inlet opening (23) arranged to suck in sediment and water. The suction head is connected to an outlet hose (6) which is at least partly flexible, the suction force being provided solely by the pressure difference between the water surface (10) and the outlet orifice (9). The suction head is suspended by e flexible suspension (3) which is arranged to drop the suction head down to the operation level in question and there to rest on the sediment without needing to know this level beforehand. The suction head (2) is provided with at least one upper inlet opening (24) at a vertical distance from the lower inlet opening (23) to prevent clogging from slides of sediment towards the lower inlet opening (23). Furthermore the suction head (2) and the at least partly flexible outlet hose (6) is preferably balanced so that the suction head will maintain an effective operating position independent of support from the flexible suspension (3).
Method and System for hydraulic removal of sediment in sand traps, where sediment are sucked into slotted pipes (15) arranged near the bottom of the sand trap. The slotted pipes (15) are branched out from connecting pieces (16) where at least two slotted pipes are connected to a common discharge pipe (17) in a direction independent of the orientation of the slotted pipes (15), the slotted pipes (15) being such separated from one another that they can operate mutually independent and still contribute to a mutual balancing of a common under pressure.
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