Sewage sedimentation tank center drive sludge scraper manufacturer 304 stainless steel mud scraper
The central drive mud scraper is applicable to the sludge scraping and discharging of the radial flow (circular) sedimentation tank with a diameter generally not greater than 18m in the water plant or sewage treatment plant in the water supply and drainage project. The central drive mud scraper is mainly composed of driving device, main shaft, handrail, steel beam, vertical grid bar, support, mud scraper, overflow weir plate, pull rod, small scraper, underwater bearing, flow stabilizer, electric control box and other components.
Working principle
The sewage flows into the diversion drum from the inlet pipe for diffusion, and then flows out to the surrounding evenly in a radial direction. The suspended sludge is deposited at the bottom of the tank after sedimentation. The driving device drives the center stand to rotate, and drives the scraper arm and scraper to rotate. After the sludge around the tank is scraped to the central sludge collection tank, it is discharged from the sludge discharge pipe outside the tank by static pressure inside the tank. The water surface scum is skimmed to the side of the tank by the skimming device, and then it is scraped into the slag bucket by the slag scraper and discharged outside the tank; The supernatant overflows to the outlet tank through the triangular outlet weir plate, and then discharges.
Application
The central drive mud scraper can be widely used in sewage treatment projects in cities, chemical industry, light textile, metallurgy and other industries. The utility model has the advantages of reasonable structure, high efficiency, convenient operation and maintenance, and is an ideal sewage treatment project.
Main features
1. The working bridge is half bridge type, and its material can be carbon steel or stainless steel structure
2. The driving device adopts the combination of helical gear reducer and worm gear reducer to ensure the output torque and speed and high transmission effect;
3. The reducer is equipped with an over torque protection device, which is safe and reliable in operation;
4. The equipment is easy to operate and can directly/remotely control the operation of the equipment;
Parameters
| Model | NL 3xL | NL 4.5xL | NL 5xL | NL 6xL |
| Pool width B(m) | 3 | 4.5 | 5 | 6 |
| Recommended pool length L(m) | 8~16 | 8~16 | 8~16 | 8~16 |
| Recommended pool depth H(m) | 3.5 | 3.5 | 3.5 | 3.5 |
| Driving power(Kw) | 2.2 | 2.2 | 2.2 | 3 |
| Scraper moving speed (m/min) | 1 | 1 | 1 | 1 |
| Scrch spacing(m) | 2 | 2 | 2 | 2 |
| Incoming water turbidity(mg／L) | ≤500 | ≤500 | ≤500 | ≤500 |
