Sewage treatment center transmission scraper

Sewage treatment center transmission scraperThe raw water from the central transmission scraper is distributed through the central water distribution cylinder and flows radially towards the overflow tank around the pool. As the flow rate decreases, suspended solids in the water are separated and settle at the bottom of the pool. The supernatant is discharged from the outlet tank through the overflow weir plate.

Main purpose:

The central drive scraper is suitable for small and medium-sized radial flow sedimentation tanks with central inlet, peripheral outlet, and central discharge. It is mainly used for sedimentation tank discharge in urban sewage treatment plants or industrial wastewater treatment projects.

Structure and working principle:

The equipment adopts a central transmission system, where sewage flows into the water pipe from under the working bridge, diffuses through the guide tube, and flows out uniformly in a radial manner to the surrounding area. The suspended sludge settles at the bottom of the tank after sedimentation. The driving device drives the central vertical shaft to rotate, and drives the scraper arm and scraper plate to rotate. The scraper collects the sludge, which is then sucked into the sludge collection tank by the suction pipe relying on the static water pressure in the tank and discharged into the central mud cylinder. The sludge on the water surface is discharged outside the tank through the central discharge pipe, and the floating slag on the water surface is introduced into the slag discharge hopper through the rotating skimming device and discharged outside the tank; The supernatant overflows into the water outlet tank through a triangular weir plate and is discharged.

Sewage treatment center transmission scraperKey Features:

The working bridge adopts a full bridge structure, which can be made of carbon steel, stainless steel or concrete structure;

The driving device adopts a vertical three-stage cycloidal pinwheel reducer or a combination of helical gear reducer and worm gear reducer to ensure output torque and speed;

The scraper adopts a straight scraper;

The lower end of the vertical shaft of the mud scraper does not have underwater bearings and scrapers, which avoids the deviation of the vertical shaft during rotation and the accumulation of sludge in the mud collection tank;

◎ Set up mechanical and electrical dual overload protection for safe and reliable operation;

The equipment is easy to operate and can be directly controlled locally/remotely. Directly control the equipment.

The central drive scraper collects sludge into the central collection tank through deceleration drive and suspended component transmission, and discharges it out of the tank by static water pressure or pump. Adopting middle water inlet and sludge discharge, and surrounding drainage to ensure uniform water flow. Utilizing liquid level difference self-priming sludge discharge, equipped with floating slag scraping and removal device and overload protection device. It is mainly composed of driving device, main shaft, railing, steel beam, vertical grating, support, scraper plate, overflow weir plate, pull rod, small scraper, underwater bearing, steady flow cylinder, electric control box and other components.