Reaction kettle and coating preparation method using reaction kettle

A reaction kettle, comprising:

• a kettle body (100), wherein the top of the kettle body (100) is provided with a feed port (110), and the side of the kettle body (100) is provided with a discharge port (120);
• an upper partition plate (200), wherein the upper partition plate (200) is rotatably arranged in a chamber of the kettle body (100), an upper jet center (201) and a plurality of upper flow ports (202) arranged around the upper jet center (201) are respectively provided on the upper partition plate (200), the lengths of flow paths from the upper jet center (201) to the upper flow ports (202) are equal;
• a lower partition plate (300), wherein the lower partition plate (300) is attached to the upper partition plate (200), a lower jet center (301), and a plurality of lower flow ports (302) and a plurality of through-flow ports (303) arranged around the lower jet center (301) are respectively provided on the lower partition plate (300), the lengths of flow paths from the lower jet center (301) to the lower flow ports (302) are equal, and each upper flow port (202) communicates with one of the through-flow ports (303);
• an adjusting portion (400), wherein the adjusting portion (400) is threaded to the upper jet center (201), liquid is able to flow from the adjusting portion (400) to the upper jet center (201) and the lower jet center (201), respectively, and the adjusting portion (400) extends out of the feed port (110);
• wherein
• when the adjusting portion (400) is rotated to a first station, the liquid on the upper partition plate (200) flows into the kettle body (100) ahead of the liquid on the lower partition plate (300);
• when the adjusting portion (400) is rotated to a second station, the liquid on the upper partition plate (200) and the liquid on the lower partition plate (300) flow into the kettle body (100) at the same time;
• and
• when the adjusting portion (400) is rotated to a third station, the liquid on the lower partition plate (300) flows into the kettle body (100) ahead of the liquid on the upper partition plate (200).