SHIP FUEL TANK WITH PERIODIC CLEARING MECHANISM

A ship fuel tank (1) with a periodic clearing mechanism, the ship fuel tank comprising a ship fuel tank, wherein a slag discharging pipe (2) in communication with the inside of the ship fuel tank is embedded in a position on an outer wall of the ship fuel tank close to the bottom; a seal cover (3) is arranged above the ship fuel tank; a liquid intake pipe (31) is embedded in an upper surface of the seal cover; cross rods (4) are arranged above the seal cover and close to two ends; sliding rods (40) are arranged at two ends of lower surfaces of the cross rods; the sliding rods pass through the seal cover; the bottoms of the sliding rods are connected by means of a scraper plate (41); a brush rod (6) is further arranged below the seal cover; protrusion blocks (60) are arranged at both ends of the brush rod; a threaded hole (600) is formed on one of the protrusion blocks; and a threaded rod (5) is arranged in the threaded hole. The ship fuel tank is fixedly connected to the seal cover by means of a bolt, which i