Device for the removal of sludge and/or sand from the bottom of a wetland
OwnerBoudewijn Gabriël Van Rompayinventor
Life of this patent
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Abstract
A device for the removal of a layer of sludge and/or sand from the bottom of a wetland includes: a diving bell with an open bottom and a lower free edge; a unit for driving the diving bell with its lower edge into the layer of sludge to be removed; a dredge pump installed in the space of the diving bell and provided with an inlet for pumping up the sludge and/or an outlet to which a pipe is connected for pumping the pumped up sludge and/or sand to a collector; and a compressor for pumping gas under pressure into the space of the diving bell during dredging. The diving bell is also provided with a gas outlet for the compressed gas, the gas outlet being adjustable in height in the diving bell because the outlet is attached to a float that can float on the sludge.
Claims20
Device for the in situ underwater removal of a layer of sludge and/or sand from the bottom of a wetland, the device containing:
- a diving bell with an open bottom and a lower free edge;
- means of driving the diving bell with the lower edge to a desired depth into the layer of sludge and/or sand to be removed;
- a dredge pump installed in a space of the diving bell and provided with an inlet for pumping up the sludge and/or an outlet to which a pipe is connected for pumping the pumped up sludge and/or sand to a collector;
- a compressor for pumping gas under pressure into the space of the diving bell during dredging,
- wherein the diving bell is also provided with a gas outlet for the compressed gas, the gas outlet being mounted to a float that is configured to float on the sludge and/or sand making the gas outlet adjustable in height in the diving bell.
Dependencies are inferred from the claim text.