Crystallization apparatus for production of pyromellitic acid

Abstract

The utility model discloses a crystallization equipment for production of pyromellitic acid belongs to pyromellitic acid production technical field, and its technical scheme main points include equipment body, the top of equipment body is provided with the cover, the inner wall rotationally connected of cover has the stirring shaft, the surface of stirring shaft has the first limit component and is connected with, the inner wall of first limit component is provided with stirring mechanism, the surface of stirring shaft has the second limit component and is connected with, solved the crystallization equipment for production of pyromellitic acid of current pyromellitic acid production when using, the stirring part of crystallization equipment adopts integrated or fixed connection mode more, after long -term operation, the stirring part is easy to wear because of material friction, corrosion, the stirring part after wearing is difficult to disassemble and replace fast, is easy to cause stirring efficiency reduction, causes the uneven crystallization of subsequent pyromellitic acid, influences product quality, and needs long -term shutdown when replacing the part, reduces the production efficiency problem.

Claims

1. A crystallization apparatus for the production of pyromellitic acetic acid, comprising an apparatus body (1), characterized in that: The top of the device body (1) is provided with a cover (5), and the inner wall of the cover (5) is rotatably connected to a stirring shaft (6). A first limiting component (3) is bolted to the surface of the stirring shaft (6), and a stirring mechanism (2) is provided on the inner wall of the first limiting component (3). A second limiting component (4) is bolted to the surface of the stirring shaft (6), and the surface of the stirring mechanism (2) is engaged with the inner wall of the second limiting component (4). A wall-mounting component (7) is provided on the inner wall of the device body (1), and a rinsing rack (8) is provided on the inner wall of the cover (5). The stirring mechanism (2) includes a stirring plate (201), a fixing rod (202) and an insert (203). The insert (203) is bolted to the fixing rod (202) on the side near the fixing rod (202). The surface of the fixing rod (202) is inserted into the inner wall of the second limiting component (4). The stirring plate (201) is bolted to the fixing rod (202) on the side near the fixing rod (202).

2. The crystallization equipment for producing pyromellitic acid according to claim 1, characterized in that: The surface of the fixing rod (202) is movably connected to the inner wall of the first limiting component (3), and the surface of the insert (203) is engaged with the inner wall of the second limiting component (4).

3. The crystallization equipment for producing pyromellitic tetracarboxylic acid according to claim 1, characterized in that: The inner wall of the first limiting component (3) is movably connected with a bolt (9), the surface of the bolt (9) is movably connected to the inner wall of the fixing rod (202), and the surface of the bolt (9) is threaded with a nut (10), the front side of the nut (10) is in close contact with the rear side of the first limiting component (3).

4. The crystallization equipment for producing pyromellitic tetracarboxylic acid according to claim 1, characterized in that: The surface of the fixing rod (202) is bolted with a fixing component (11), and the wall-mounting component (7) is bolted to the fixing component (11).

5. The crystallization equipment for producing pyromellitic acid according to claim 3, characterized in that: The first limiting component (3) includes a first fixing ring (301) and a limiting frame (302). The limiting frame (302) is bolted to the first fixing ring (301) on the side close to the first fixing ring (301). The surface of the fixing rod (202) is movably connected to the inner wall of the limiting frame (302). The surface of the bolt (9) is movably connected to the inner wall of the limiting frame (302). The inner wall of the first fixing ring (301) is bolted to the surface of the stirring shaft (6).

6. The crystallization equipment for producing pyromellitic acid according to claim 1, characterized in that: The second limiting component (4) includes a second fixing ring (401) and a placement frame (402). The placement frame (402) is bolted to the second fixing ring (401) on the side near the second fixing ring (401). The surface of the fixing rod (202) is inserted into the inner wall of the placement frame (402). The surface of the insert block (203) is inserted into the inner wall of the placement frame (402). The inner wall of the second fixing ring (401) is bolted to the surface of the stirring shaft (6).

7. The crystallization equipment for producing pyromellitic tetracarboxylic acid according to claim 1, characterized in that: The bottom of the rinsing rack (8) is movably connected to a rinsing nozzle (12), and the top of the rinsing rack (8) is bolted with an installation component (13). The installation component (13) is bolted to the cover (5) on the side near the inner wall of the cover (5).

8. The crystallization equipment for producing pyromellitic acid according to claim 7, characterized in that: A pump body (14) is bolted to the left side of the device body (1), and a connecting pipe (15) is movably connected to the top of the pump body (14). The connecting pipe (15) is movably connected to the rinsing rack (8) on the side near the rinsing rack (8).

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