SLUDGE AUTOMATIC RECOVERY SYSTEM IN THE STEEL SEDIMENTATION POND

Zhang Tao

ABSTRACT:A lot of sludge will be produced in steel and other industrial production. The precipitation of iron sludge will be recycled again after treatment. In order to make a voluntary recall at a certain depth. According to Tangshan Iron and Steel Group Co., Ltd, developed ultrasonic testing automatic recovery system. Most of the recovery system usually use a timer, the recovery is in a specified period of time, because of the uncertainty of the production process, the recovery is not ideal. This system uses ultrasonic waves to detect echo time by Atmega16 and determine whether or not the thickness of the slurry reaches the discharge position, give prompts to the operators or automatic control motor recovery. In the actual test, the effect is good.

Keywords:Liquid ultrasonic sensors, Sedimentation pond sludge, AVR MCU.