Sealing structure of reaction kettle stirring shaft

The utility model discloses a sealing structure of a stirring shaft of a reaction kettle, and particularly relates to the field of reaction kettles, which comprises a reaction kettle body, a rotatingshaft and a rotating support part, the surface of the rotating shaft is sleeved with an anti-corrosion protection mechanism, the anti-corrosion protection mechanism comprises an anti-corrosion supportlantern ring and an anti-corrosion flange cover, and anti-expansion protection mechanisms are arranged on two sides of the anti-corrosion support lantern ring. The anti-expansion protection mechanismcomprises anti-expansion top rubber and an anti-expansion gap, the anti-expansion gap is located on the inner side of the anti-corrosion supporting lantern ring, an oil seal installation sliding cavity is formed in the inner side of the rotating shaft connecting end, and an oil pressure supporting part is installed on the inner side of the oil seal installation sliding cavity in a sliding mode. Through the arrangement of t