Ballast water filtering device with backwashing and electric brush cooperative self-cleaning function

Abstract

The invention relates to a ballast water filtering device with a backwashing and electric brush cooperative self-cleaning function. The device comprises a vertical filter barrel which comprises a filter barrel main body and an annular barrel cover sealed at a top opening of the filter cartridge main body; a filter screen; an electric brush cleaning assembly comprising an electric brush motor, a U-shaped cleaning brush mounting frame and a cleaning brush which are in transmission in sequence; a sewage discharging and backwashing assembly comprising a sewage collection cavity fixed to the lowerportion of the annular barrel cover and in a circular-ring shape, a rotating shaft motor, a rotating shaft, a sewage suction pipe which are rotated in order and a water spraying pipe connected with the rotating shaft, are; wherein the sewage suction pipe is arranged in the filter screen, a plurality of sewage suction openings are formed in the surface of the sewage suction pipe, high-pressure spray heads right opposite to the sewage suction openings are arranged on the water spraying pipe, and the sewage suction pipe is communicated with the sewage collection cavity through the rotating shaft; and a pressure detection control assembly used for achieving self-adaptive self-cleaning control. Compared with the prior art, the device has the advantages of double cleaning, optimal self-cleaningefficiency, high automation degree and the like, and the highest ballast efficiency is kept.

Description

technical field [0001] The invention relates to the field of marine environmental protection, in particular to a ballast water filtering device with the self-cleaning function of backwashing and electric brush coordination. Background technique [0002] The sea transportation of cargo ships is inseparable from ballast water, and its functions are mainly reflected in two aspects: when the ship is sailing empty-loaded, it can ensure that the ship has a certain draft; when the ship is loaded, by adjusting the water in the ballast water tank The amount of ballast water keeps the ship in a stable sailing attitude. At present, about 80% of the world's cargo is transported by sea, and the amount of ballast water carried by ships accounts for 25% to 50% of the total load, so about tens of billions of tons of ballast water are transferred around the world every year. The discharge of ballast water will disturb the balance of the ecosystem and pose a threat to the global environment....

AI Technical Summary

Problems solved by technology

However, when the method of physical filtration is adopted, the ballast water injected along the coast contains a large amount of impurities and flocs, which are easy to block the filter screen

The traditional method usually manually cleans and replaces the filter screen repeatedly. This method is labor-intensive and wastes a lot of time, which greatly affects the ballasting efficiency of seawater.

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