IP Library › Granted Patent US 12691431

Granted Patent B2

US 12691431 · App. 18/254,760 · Granted Jul 28, 2026

Reaction kettle and coating preparation method using reaction kettle

Inventors: Shaochun Tang (Haian City, CN); Hongbin Lu (Haian City, CN); Xiangkang Meng (Haian City, CA)

Assignee: HAIAN INSTITUTE OF HIGH-TECH RESEARCH, NANJING UNIVERSITY

B01J19/18 B01J4/001 B01J4/004 B01J4/007 B01J19/0053 B01J2204/002 B01J2219/00164

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Quick Facts

Patent No.: US 12691431
App. No.: 18/254,760
Granted: Jul 28, 2026
Kind: B2

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Abstract

Disclosed are a reaction kettle and a coating preparation method using the reaction kettle. The reaction kettle includes a kettle body ( 100 ), 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 ) is rotatably arranged in a chamber of the kettle body ( 100 ), an upper jet center ( 201 ) and a number of upper flow ports ( 202 ) arranged around the upper jet center ( 201 ) are respectively provided on the upper partition plate ( 200 ). A lower partition plate ( 300 ) is attached to the upper partition plate ( 200 ), a lower jet center ( 301 ), a number of lower flow ports ( 302 ) and a number of through-flow ports ( 303 ) arranged around the lower jet center ( 301 ) are respectively provided on the lower partition plate ( 300 ).

Claims (62)

1 . 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 ).

2 . The reaction kettle according to claim 1 , wherein

the plurality of lower flow ports ( 302 ) are circumferentially surrounded by the plurality of through-flow ports ( 303 ); and

the plurality of through-flow ports ( 303 ) are arranged horizontally and longitudinally.

3 . The reaction kettle according to claim 2 , wherein

the adjusting portion ( 400 ) comprises a blind hole pipe ( 401 ) with a blind hole formed inside, and a lower tee pipeline ( 402 ) and an upper tee pipeline ( 403 ) are arranged upwards from the bottom of the blind hole pipe ( 401 ); the center of the lower tee pipeline ( 402 ) is downwards provided with a flow pipe orifice, the center of the upper tee pipeline ( 403 ) is upwardly connected to the blind hole pipe ( 401 ), and an outer ring surrounding the blind hole pipe ( 401 ) is provided with a casing wall ( 404 );

a casing opening ( 405 ) is provided surrounding the casing wall ( 404 );

the middle part of the upper jet center ( 201 ) is provided with a threaded through groove ( 203 ), the inner wall of the threaded through groove ( 203 ) is provided with a U-shaped groove ( 204 ) having a U-shaped cross section, and the blind hole pipe ( 401 ) is threaded into the threaded through groove ( 203 ); and

the casing wall ( 404 ) is rotated to adapt to the first station, the second station and the third station.

4 . The reaction kettle according to claim 3 , wherein a gap between the upper tee pipeline ( 403 ) and the lower tee pipeline ( 402 ) is in fit with a slot of the U-shaped groove ( 204 ).

5 . The reaction kettle according to claim 4 , wherein

the end face, close to the threaded through groove ( 203 ), of the upper partition plate ( 200 ) is provided with a first label, a second label and a third label, and the side wall of the blind hole pipe ( 401 ) is provided a first corresponding label, a second corresponding label and a third corresponding label;

when the first label and the first corresponding label are adapted to each other, the blind hole pipe ( 401 ) is located at the first station;

when the second label and the second corresponding label are adapted to each other, the blind hole pipe ( 401 ) is located at the second station; and

when the third label and the third corresponding label are adapted to each other, the blind hole pipe ( 401 ) is located at the third station.

6 . A coating preparation method using the reaction kettle according to claim 1 , comprising the following steps:

S1: adjusting an adjusting portion ( 400 ) to a third station, injecting hydrochloric acid into a kettle body ( 100 ) from the adjusting portion ( 400 );

S2: adjusting the adjusting portion ( 400 ) to a second station, injecting polyacrylic acid and ammonium sulfate from an upper partition plate ( 200 ) and a lower partition plate ( 300 ), respectively, and mixing the polyacrylic acid and ammonium sulfate;

S3: adjusting the adjusting portion ( 400 ) to a first station, injecting solution containing Zn/C composite spherical particles and aniline monomers from the upper partition plate ( 200 ) and the lower partition plate ( 300 ), respectively, and mixing the solution containing Zn/C composite spherical particles and aniline monomers to form mixed solution;

S4: dripping and coating the mixed solution on the surface of a workpiece and performing spin coating to form a spin-coating solution surface;

S5: heating the workpiece, and evaporating the spin-coating solution surface to form a spin-coating layer; and

S6: coating a polyethyleneimine solution on the surface of the spin-coating layer, heating the workpiece, and evaporating the spin-coating layer to form a protective coating.

7 . The coating preparation method according to claim 6 , wherein

the plurality of lower flow ports ( 302 ) are circumferentially surrounded by the plurality of through-flow ports ( 303 ); and

the plurality of through-flow ports ( 303 ) are arranged horizontally and longitudinally.

8 . The coating preparation method according to claim 7 , wherein the adjusting portion ( 400 ) comprises a blind hole pipe ( 401 ) with a blind hole formed inside, and a lower tee pipeline ( 402 ) and an upper tee pipeline ( 403 ) are arranged upwards from the bottom of the blind hole pipe ( 401 ); the center of the lower tee pipeline ( 402 ) is downwards provided with a flow pipe orifice, the center of the upper tee pipeline ( 403 ) is upwardly connected to the blind hole pipe ( 401 ), and an outer ring surrounding the blind hole pipe ( 401 ) is provided with a casing wall ( 404 );

a casing opening ( 405 ) is provided surrounding the casing wall ( 404 );

the casing wall ( 404 ) is rotated to adapt to the first station, the second station and the third station.

9 . The coating preparation method according to claim 8 , wherein a gap between the upper tee pipeline ( 403 ) and the lower tee pipeline ( 402 ) is in fit with a slot of the U-shaped groove ( 204 ).

10 . The coating preparation method according to claim 9 , wherein

when the first label and the first corresponding label are adapted to each other, the blind hole pipe ( 401 ) is located at the first station;

when the second label and the second corresponding label are adapted to each other, the blind hole pipe ( 401 ) is located at the second station; and

when the third label and the third corresponding label are adapted to each other, the blind hole pipe ( 401 ) is located at the third station.

11 . The coating preparation method according to claim 6 , further comprising the following steps: