Construction and working process

The WNG series concentration tank scraper adopts a suspended center drive, as shown in Figure 1, consisting of a vertical reducer with an electric motor, a rotary bearing with external teeth, a main shaft, a scraper arm, a scraper, a concentration grid, a steady flow cylinder, a control cabinet, etc. The scraper arm rotates around the central axis of the pool under the drive of the transmission device. The scraper on the scraper arm pushes the sludge deposited at the bottom of the pool from the outside to the inside towards the mud collection pit at the center of the pool. During operation, due to unexpected reasons such as foreign objects jamming or excessive mud accumulation, the transmission is over twisted. When the torque reaches the set value, the over twist protection mechanism will act, cut off the power supply, and automatically alarm and stop the machine.