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Recently, the reporter learned from the public information website of the State Intellectual Property Office of the People's Republic of China that Wenzhou Bosideng Seal Co., Ltd. has obtained the invention patent for the seal assembly of a slurry pump. Patent No. 5, the patented invention has now entered the stage of industrial production, marking our own intellectual property rights of the slurry pump mechanical seal technology to achieve an important breakthrough. It is understood that the seal assembly of the slurry pump includes a stationary ring and a moving ring assembly. The moving ring assembly includes a moving ring, a driving sleeve and a protective sleeve. The moving ring, the driving sleeve and the protective sleeve are integrated. The driving sleeve is embedded in Protective sleeve, moving ring and drive lap lap with the rotation of the drive sleeve, moving ring and the drive sleeve with O-ring between the moving ring and the stationary ring was sliding seal with the rear end of the moving ring and protective sleeve rear seat The other end of the spring is placed on the spring seat of the back seat of the protective sleeve, the static ring is mounted on the pump body, the static ring and the pump body are provided with O-shaped Sealing ring, moving ring through the drive sleeve and protective sleeve mounted on the impeller with the impeller rotation. It is reported that the slurry pump is usually used in coal mining and other industries, after the pump material hardness, high pressure. The existing slurry pump static ring mounted on the pump body, moving ring mounted on the sleeve, through the moving ring and stationary ring sealing surface to achieve the pump seal. This seal structure of the slurry pump in high pressure operation, a strong working pressure will make the stationary ring and moving ring seal surface separation, resulting in leakage seal pump.