The real-time control of air transportation parameters is realized by injection device of powder activated carbon through controlling the operations of screw electronic weigher and blower. The solid stream sensor sent out signals when there was shortage of powder activated carbon or mixed gas concentrations varied from the set value. The air conveyor alarmed when air pressure loss was abnormal or tube blocked, and the feeding to screw electronic weigher was stopped at the same time. Airflow velocity and pre...
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