Static soaking and deacidifying device for paper and working method thereof

The invention relates to a paper static soaking deacidification device and a working method thereof. The paper static soaking deacidification device comprises a treatment unit, a liquid storage unit and a recovery unit which are connected with a control unit; the treatment unit comprises a treatment chamber, the bottom of the treatment chamber is connected with a liquid inlet valve and a liquid outlet valve, an inlet of the liquid inlet valve is connected with a first liquid supply pump through a pipeline, and an outlet of the liquid outlet valve is connected with a liquid storage tank through a treatment liquid filter; the liquid storage unit comprises a liquid storage tank, the bottom of the liquid storage tank is connected with an inlet of the first liquid supply pump through a pipeline, and an outlet of the first liquid supply pump is connected with the inlet of the liquid inlet valve of the treatment chamber through a pipeline; and the recovery unit comprises a vacuum device connected with the treatment