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The central rotating sludge scraper is driven by a drive mechanism installed on the central bracket to drive the scraping and suction sludge collection device, which moves in a circle with the center of the pool as the axis. The sludge at the bottom of the pool is sucked into the sludge collection tank by the static pressure of the liquid through the collection device, and flows into the central sludge discharge pipe for discharge. The supernatant flows into the water collection tank through the overflow weir plate around the pool and is discharged through the outlet pipe to achieve mud and water separation. This machine is suitable for radial flow sedimentation tanks with medium and large pool diameters.
Working principle
The central drive mud scraper adopts central drive and suspension type. After the sewage flows into the guide tube from the water inlet pipe under the working bridge and diffuses, it evenly flows out to the periphery in a radial shape. The suspended sludge is deposited on the bottom of the pool after sedimentation, driving the The device drives the central vertical shaft to rotate, and drives the scraping arm and the scraper to rotate. After scraping the sludge from the periphery of the pool to the central sludge collecting tank, it is discharged out of the pool through the sludge discharge pipe by the hydrostatic pressure in the pool, and the scum on the water surface passes through the rotation. The slag skimming device is skimming to the edge of the pool, and then scraped into the slag discharge bucket by the scraper rake and discharged out of the pool; while the supernatant liquid is overflowed into the water outlet through the triangular outlet weir and discharged.
Technical advantages
The working bridge adopts a steel truss structure, which is simple, beautiful and light, and a steel concrete beam platform can also be used.
It is easy to install and maintain and has low operating cost.
There are many options for transmission reducer: direct drive by three-stage cycloid reducer, simple and compact structure, easy maintenance; combined drive of reducer, transmission gear and slewing bearing, can obtain great driving torque, suitable for heavy loads occasion.
The bridge mud scraper equipment is easy to operate, and the operation of the equipment can be controlled directly/remotely
Driving scraper equipment can be manufactured to user size. Parts in contact with water can be made of stainless steel
Model specifications and related technical parameters
Product Application
The center drive scraper is suitable for the removal of sludge and scum from radial flow primary sedimentation tank and secondary sedimentation tank. The driving pump suction scraper is a center pier type center drive, platform fixed pier type, driven by a worm gear reduction motor installed on the center water inlet column pipe, and driven by the internal gear transmission of the center slewing bearing to drive the frame steel structure, sludge suction pipe arm, sludge collection tank, sludge suction pipeline, slag skimming device and other components to rotate, usually with a diameter range of 8 meters to 20 meters. The small lower part adopts an integral spiral scraper, the medium and large lower part adopts a multi-plate inclined scraper, the upper scum collection device, and the center of the pool is watered and discharged. Flat suction nozzle self-priming sludge suction; the pool can have a flat bottom flow or inclined bottom.
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