The invention relates to a
wastewater treatment device for printing and
dyeing processing in the field of
wastewater treatment. In the normal working process of the
oxygenation device of the present application, once a single or several flow sensors detect a significant decrease in flow, it is determined that a blockage occurs in the
branch pipe where the flow sensors are located. At this time, the electromagnetic block is energized to generate an adsorption force on the magnetic block, driving the active plug to move upward as a whole. At this time, with the cooperation of the active plug and the driven plug, the water remaining on the upper part of the
pipe body will be discharged, and the blockage at the position of the water inlet will be blown away. After the electromagnetic block is energized for a period of time, the power is
cut off, and the active plug and the driven plug move downward to inhale the
wastewater in the aerobic
pool. The work of the electromagnetic block is repeated. At this time, the
pipe body will have a process like animal
breathing, and the blockage near the water inlet will be blown away. It is not easy to perform
oxygenation work only on part of the position, and it is not easy to cause the
oxygen blown in to be unevenly distributed in the aerobic
pool, and the effect of
oxygen blowing is good.