1-amino-2-bromoanthraquinone preparation and purification apparatus

Abstract

This invention provides a device for the preparation and purification of 1-amino-2-bromoanthraquinone, comprising a reaction vessel, a stirring mechanism, and a feeding mechanism. The reaction vessel includes a shell, a top cover, and a reaction chamber. The top cover has a feeding chamber, and a feeding port is provided between the feeding chamber and the reaction chamber. An opening is provided on the upper side of the feeding chamber at a position corresponding to the feeding port. The stirring mechanism includes a first motor, a telescopic rod, and a stirring disc. The first motor is connected to the stirring disc via the telescopic rod. The stirring disc has several guide holes and a sampling groove. The feeding mechanism includes a feeding hopper, a second motor, and a feeding turntable. The second motor is fixedly connected to the feeding turntable, which is placed inside the feeding chamber. The feeding hopper is fixedly connected to the upper side of the top cover above the feeding chamber. A discharge channel is provided below the feeding hopper, extending into the reaction chamber. By modifying the feeding turntable of the feeding mechanism, and using a motor to control whether the feeding turntable feeds and the feeding time interval, this invention effectively improves the precise control of the purification reaction process. By designing the stirring plate and sampling port, this invention enables periodic sampling, efficiently obtaining reaction process data of the reactants within the equipment, and providing a clear basis for controlling the reaction process.

Description

Technical Field

[0001] This invention relates to the field of dye production by-product processing equipment, specifically a 1-amino-2-bromoanthraquinone preparation and purification apparatus. Background Technology

[0002] Bromoacetic acid is a widely used dye intermediate, but its industrial production process generates a byproduct, 1-amino-2-bromoanthraquinone. This byproduct not only increases production costs but also the expense of waste treatment, wasting resources and contradicting the principles of green production. However, 1-amino-2-bromoanthraquinone can be purified and reused in the synthesis of other dyes. Therefore, the effective purification of 1-amino-2-bromoanthraquinone has become an urgent problem to be solved.

[0003] For example, a Chinese patent discloses "A Planetary Electromagnetic Stirring Pot" (patent number: CN216724116U). This patent includes a casing with a groove on it. A stirring pot is rotatably mounted in the groove. The casing also has symmetrically arranged clamping arm plates for rotatably mounting a robotic arm. The robotic arm includes a rotating arm and a stirring arm, which are perpendicular to each other. The rotating arm is connected to the clamping arm plates. A stirring mechanism is located below the stirring arm and directly above the stirring pot. A pot lid is located directly above the stirring mechanism and has several vent holes. A fan is installed on the stirring arm corresponding to the vent holes. A lifting mechanism is located at the bottom of the stirring pot. This patent allows for tilting assisted by the lifting mechanism and the feed inlet, absorption of oil fumes during heating and stirring through the vent holes and the fan, and thorough stirring of the pot by the stirring mechanism. The overall structure is compact and reasonable, greatly improving the practicality of the equipment.

[0004] However, the aforementioned planetary electromagnetic stirring pot cannot meet the sampling and detection requirements in the by-product purification process. Its feeding method cannot meet the requirements for precise, timed, and quantitative feeding in the by-product purification process, and it cannot accurately control the reaction process. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a device for the preparation and purification of 1-amino-2-bromoanthraquinone, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a 1-amino-2-bromoanthraquinone preparation and purification apparatus, comprising a reaction vessel, a stirring mechanism, and a feeding mechanism. The reaction vessel includes a shell, a top cover, and a reaction chamber. The top cover has a feeding chamber, and a feeding port is provided between the feeding chamber and the reaction chamber. An opening is provided on the upper side of the feeding chamber at a position corresponding to the feeding port. The stirring mechanism includes a first motor, a telescopic rod, and a stirring disc. The first motor is connected to the stirring disc via the telescopic rod. The stirring disc has several guide holes and a sampling groove. The feeding mechanism includes a feeding hopper, a second motor, and a feeding turntable. The second motor is fixedly connected to the feeding turntable, which is placed inside the feeding chamber. The feeding hopper is fixedly connected to the upper side of the top cover above the feeding chamber. A discharge channel is provided below the feeding hopper, and the discharge channel extends into the reaction chamber.

[0009] Preferably, the feeding turntable has a circular groove limiting groove, and an arc-shaped feeding port with an arc opening is provided below the limiting groove. The center of the arc-shaped feeding port coincides with the center of the limiting groove. A first limiting block is provided between the upper side of the feeding turntable and the upper cover. The width of the first limiting block is adapted to the limiting groove. The feeding channel includes the feeding port, the first limiting block, the limiting groove, and the arc-shaped feeding port.

[0010] Preferably, the second motor includes a square shaft and a first limiting hole, the feeding turntable includes a second limiting hole and a second limiting block, an opening is provided at the center of the feeding turntable, a plurality of opening second limiting holes are provided on the inner wall of the opening, a second limiting block and a spring are installed in the second limiting hole, and when the second motor is inserted into the feeding turntable, the second limiting block is embedded in the first limiting hole.

[0011] Preferably, the upper cover has a pipe sampling channel, and the sampling channel is fixedly connected to a sampling port, the sampling port being adapted to the position of the sampling groove.

[0012] Preferably, a sealing ring is embedded in the end face of the first limiting block near the limiting groove.

[0013] (III) Beneficial Effects

[0014] This invention provides an apparatus for the preparation and purification of 1-amino-2-bromoanthraquinone. It has the following beneficial effects:

[0015] 1. This solution uses guide holes on a stirring plate controlled by a motor and an electric telescopic rod to stir the reactants, and periodically samples the reactants through sampling slots on the stirring plate. The samples are then taken out through sampling ports and sampling channels for testing, which efficiently obtains the reaction process data of the reactants in the equipment, providing a clear basis for controlling the reaction process.

[0016] 2. This solution effectively improves the precise control of the purification reaction process by controlling whether to feed and the time interval of feeding through a feed turntable controlled by a motor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A

[0020] Figure 4 This is a schematic diagram of the main structure of the feeding mechanism of the present invention;

[0021] Figure 5 This is an exploded structural diagram of the feeding mechanism of the present invention;

[0022] Figure 6 This is a schematic diagram of the main structure of the second limiting block portion of the present invention.

[0023] In the diagram: 11. Outer shell; 12. Top cover; 13. Reaction chamber; 14. First motor; 15. Telescopic rod; 16. Stirring plate; 17. Guide hole; 18. Sampling groove; 20. Feeding chamber; 21. Feed inlet; 22. Feed hopper; 23. First limiting block; 24. Second motor; 25. Square shaft; 26. First limiting hole; 27. Feed turntable; 28. Limiting groove; 29. ​​Arc-shaped feed inlet; 30. Second limiting hole; 31. Second limiting block; 32. Spring; 39. Sampling port; 40. Sampling channel. Detailed Implementation

[0024] This invention provides an apparatus for the preparation and purification of 1-amino-2-bromoanthraquinone, such as... Figure 1-5 As shown, it includes: outer shell 11, top cover 12, reaction chamber 13, first motor 14, telescopic rod 15, stirring plate 16, guide hole 17, sampling groove 18, feeding chamber 20, inlet 21, feeding hopper 22, 23, first limiting block, second motor 24, square shaft 25, first limiting hole 26, feeding turntable 27, limiting groove 28, arc-shaped inlet 29, second limiting hole 30, second limiting block 31, spring 32, sampling port 39, sampling channel 40.

[0025] like Figure 1As shown, the present invention includes a shell 11 and a top cover 12. The shell 11 is a cylindrical shell, and the top cover 12 is a circular top cover, the size of which is adapted to the shell 11. A feeding hopper 22 is fixedly installed on one side of the top cover 12, and the feeding hopper 22 is installed on the same side of the top cover 12. The centers of the feeding hopper 22 and the top cover 12 are on the same straight line. A sampling channel 40 is installed on the side of the top cover 12, and the sampling channel 40 is located on the other side of the feeding hopper 22 on the top cover 12.

[0026] like Figure 2-3 As shown, the upper cover 12 has a feeding chamber 20, and the feeding chamber 20 is connected to the reaction chamber 13 by an inlet 21. The upper side of the feeding chamber 20 has an opening at the corresponding position of the inlet 21. The stirring mechanism includes a first motor 14, a telescopic rod 15, and a stirring plate 16. The first motor 14 is connected to the stirring plate 16 through the telescopic rod 15. The stirring plate 16 has several guide holes 17 and a sampling groove 18. The feeding mechanism includes a feeding hopper 22, a second motor 24, and a feeding turntable 27. The second motor 24 is fixedly connected to the feeding turntable 27, which is placed inside the feeding chamber 20. The feeding hopper 22 is fixedly connected to the upper side of the upper cover 12, and a discharge channel is provided below the feeding hopper 22, which extends to the reaction chamber 13.

[0027] The feeding turntable 27 has a grooved limiting groove 28. Below the limiting groove 28, there is an arc-shaped opening and an arc-shaped feeding port 29. The center of the arc-shaped feeding port 29 coincides with the center of the limiting groove 28. A first limiting block 23 is provided between the upper side of the feeding turntable 27 and the upper cover 12. The width of the first limiting block 23 is adapted to the limiting groove 28. The feeding channel includes the feeding port 21, the first limiting block 23, the limiting groove 28 and the arc-shaped feeding port 29.

[0028] The upper cover 12 has a pipe sampling channel 40, and the sampling channel 40 is fixedly connected to a sampling port 39, which is adapted to the position of the sampling groove 18.

[0029] like Figure 4-5 As shown, the second motor 24 includes a square shaft 25 and a first limiting hole 26, and the feeding turntable 27 includes a second limiting hole 30 and a second limiting block 31. An opening is provided at the center of the feeding turntable 27, and several openings of the second limiting hole 30 are provided on the inner wall of the opening. The second limiting block 31 and spring 32 are installed in the second limiting hole 30. When the second motor 24 is inserted into the feeding turntable 27, the second limiting block 31 is embedded in the first limiting hole 26.

[0030] In the initial position, the stirring plate 16 is located at the bottom of the reaction chamber 13, and the arc-shaped feed port 29 does not correspond to the position of the discharge channel.

[0031] During the first stage of the reaction, the first motor 14 pulls the telescopic rod 15 to lift the stirring plate 16. The liquid in the reaction chamber 13 flows into the space below the stirring plate 16 through the guide hole 17. As time goes by, the stirring plate 16 is raised to the top of the reaction chamber 13, and the liquid in the reaction chamber 13 flows to the bottom of the stirring plate 16. However, some liquid remains in the sampling tank 18. At this time, the outer side of the sampling channel 40 provides suction to the inner side, and the sample is sucked out from the sampling port 39.

[0032] During the second stage of the reaction, the first motor 14 pushes the telescopic rod 15 to lower the stirring plate 16, and the liquid in the reaction chamber 13 flows into the space above the stirring plate 16 through the guide hole 17.

[0033] The first and second stages of the reaction cycle repeatedly, with periodic sampling. When the sample value reaches the target value, the second motor 24 drives the feed turntable 27 to rotate the arc-shaped feed inlet 29 to the corresponding discharge channel position for feeding. Furthermore, the feed turntable 27 can be continuously rotated to periodically feed material into the reaction chamber 13.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for the preparation and purification of 1,1-amino-2-bromoanthraquinone, characterized in that: The system includes a reactor, a stirring mechanism, and a feeding mechanism. The reactor includes a shell (11), a top cover (12), and a reaction chamber (13). The top cover (12) has a feeding chamber (20), and a feeding port (21) is provided between the feeding chamber (20) and the reaction chamber (13). An opening is provided on the upper side of the feeding chamber (20) at a position corresponding to the feeding port (21). The stirring mechanism includes a first motor (14), a telescopic rod (15), and a stirring plate (16). The first motor (14) and the stirring plate (16) are connected by the telescopic rod (15). The mixing plate (16) is provided with several guide holes (17), and the mixing plate (16) is provided with a sampling groove (18). The feeding mechanism includes a feeding hopper (22), a second motor (24) and a feeding turntable (27). The second motor (24) is fixedly connected to the feeding turntable (27). The feeding turntable (27) is placed in the feeding chamber (20). The feeding hopper (22) is fixedly connected to the upper side of the upper cover (12) above the feeding chamber (20). A discharge channel is provided below the feeding hopper (22). The discharge channel extends through to the reaction chamber (13).

2. The apparatus for preparing and purifying 1-amino-2-bromoanthraquinone according to claim 1, characterized in that: The feeding turntable (27) has a groove limiting groove (28), and an arc-shaped opening arc feeding port (29) is provided below the limiting groove (28). The center of the arc feeding port (29) coincides with the center of the limiting groove (28). A first limiting block (23) is provided between the upper side of the feeding turntable (27) and the upper cover (12). The width of the first limiting block (23) is adapted to the limiting groove (28). The feeding channel includes a feeding port (21), a first limiting block (23), a limiting groove (28), and an arc feeding port (29).

3. The apparatus for preparing and purifying 1-amino-2-bromoanthraquinone according to claim 2, characterized in that: The groove limiting groove (28) is formed on the feed turntable (27), and the groove limiting groove (28) coincides with the position of the arc-shaped feed inlet (29).

4. The apparatus for preparing and purifying 1-amino-2-bromoanthraquinone according to claim 1, characterized in that: The second motor (24) includes a square shaft (25) and a first limiting hole (26). The feed turntable (27) includes a second limiting hole (30) and a second limiting block (31). An opening is provided at the center of the feed turntable (27). Several opening second limiting holes (30) are provided on the inner wall of the opening. The second limiting block (31) and a spring (32) are installed in the second limiting hole (30). When the second motor (24) is inserted into the feed turntable (27), the second limiting block (31) is embedded in the first limiting hole (26).

5. The apparatus for preparing and purifying 1-amino-2-bromoanthraquinone according to claim 1, characterized in that: The upper cover (12) has a pipe sampling channel (40) inside, and the sampling channel (40) is fixedly connected to a sampling port (39). The sampling port (39) is adapted to the position of the sampling groove (18).

6. The apparatus for preparing and purifying 1-amino-2-bromoanthraquinone according to claim 2, characterized in that: A sealing ring is embedded in the end face of the first limiting block (23) near the limiting groove (28).

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