1.Introduction

Central drive sludge scraper mainly suits for circular radial flow sedimentation tank of sewage treatment plant. Its major function is to scrape the settling sludge to the sludge tank in order to sludge back-flow and sludge thickening and dewatering. Depending upon circumstances, we can also set up a skimming mechanism on the water surface, collecting the float scum discharged by hopper. 

ZGA sludge scraper consists of working bridge (normally, half-bridge) , drive mechanism, rotary frame, scraping arm and scum board, dragline, hopper agitating impeller, steady flow cylinder, electric cabinet. According to the actual condition, we can add effluent weir plate, skimming mechanism, slag tap and sludge hopper,etc. 

When the ZGA sludge scraper working and running, its drive mechanism installed on the working bridge will move the frame for rotary motion. Then the scraping arms on two sides and scum board will move in a clockwise direction, scraping out the settling sludge to the sludge collecting tank. At the same time, if there is float scum, the skimmer will scrape it into sludge hopper.

2. Features

1) The working bridge will adopt truss type, concise, beautiful and light;

2) Easy for maintenance,low cost consumption;

3) Drive reducer: cycloidal reducer, compact structure;

4) For the electric components, we will use outdoor type, safe and reliable, stochastic control and remote control;

5) We can make the unit according to client’s requirement. Wetted parts can be stainless steel.