Sealing structure for sludge collecting cylinder and central post of sludge scraping suction dredger

Abstract

The invention discloses a sealing structure between a mud collection cylinder and a center column of a scraper and suction mud machine. A rubber ring is fixed on the outer peripheral surface of the center column through flanges and fasteners, and the bottom wall of the mud collection cylinder is directly placed on the rubber ring. On the upper surface, the two are compressed by internal and external pressure to realize dynamic sealing during rotation. The present invention utilizes the bottom surface of the bottom wall of the mud collecting cylinder and the upper surface of the rubber ring to be frictionally and rotationally sealed, the contact surface is relatively large, and the water level in the pool and the mud level difference of the mud collecting tank are used to compress and seal, so a good dynamic sealing effect can be obtained to prevent Leakage of clean water. And it is not easy to wear, which effectively improves the life of the seal. The joints of the upper and lower layers of rubber rings in the present invention are staggered, which not only prevents sludge from leaking from the joints, but also facilitates maintenance, greatly reduces the consumption of manpower and material resources, and has significant economic value.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a sealing structure between a mud collecting cylinder and a center column of a radial flow type secondary sedimentation tank scraper and suction dredger. Background technique [0002] The sludge scraper and suction machine is an important equipment in the waste water and coal slime treatment of municipal, sewage treatment plants, coal mining enterprises, iron and steel enterprises, etc. It collects the sludge settled at the bottom of the pool to the center of the pool and discharges it out of the pool. According to the difference, it is divided into central transmission type and peripheral transmission type. [0003] like figure 1 , figure 2 As shown, the peripheral transmission scraper and suction dredger is arranged in the radial direction of the radial flow circular sedimentation tank 13, the working bridge 5 is erected between the central column 7 and the ...

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Problems solved by technology

[0005] The applicant aims at the shortcomings of the above-mentioned existing mud collecting cylinder and central column sealing structure, which is easy to wear and has poor dynamic sealing effect, and provides a sealing structure for the mud collecting cylinder and central column of the scraper and suction dredger with reasonable structure, so as to improve Service life and effect of sealing structure

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