All three water ring vacuum pumps can operate normally, and each vacuum pump can reach a vacuum of -0.1MPa. One of the vacuum pumps can provide vacuum for vacuum dryers and double cone dryers, one can be used for pumping materials in the reaction tank, and the remaining one can be used as a spare. The matching two air suction safety tanks can also effectively prevent the water in the water tank from being sucked into the production liquid.
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