Base material mixing device for preparing bisphenol A cyanate ester

Abstract

The utility model relates to a base material mixing device for preparing bisphenol A cyanate ester, which comprises a mixing reaction tank, a stirring shaft, a stirrer, a discharging pipe, a driving motor, a spiral conveyor, a powder bin, a dispersing box, a dispersing coil pipe and a blanking pipe, a solvent inlet pipe is arranged on the left side of the mixing reaction tank, and a solvent conveying pump is arranged on the solvent inlet pipe; the solvent inlet pipe is connected with an upper conveying pipe and a lower conveying pipe, the upper conveying pipe is connected with the dispersing coil pipe, a pipeline mixer is arranged on the lower conveying pipe, the lower conveying pipe extends into the lower part of the mixing reaction tank, the lower conveying pipe is connected with a liquid base material inlet pipe, and a liquid material conveying pump is arranged on the liquid base material inlet pipe. By arranging the pipeline mixer, the dispersing box and the dispersing coil pipe, bisphenol A and cyanate ester can be separately mixed with an organic solvent in a flowable manner, and then enter the mixing reaction tank for mixing reaction, so that the mixing effect is better, the mixing speed is higher, the bisphenol A cannot be caked, and the reaction is more facilitated.

Description

Technical Field

[0001] The utility model relates to a base material mixing device for preparing bisphenol A cyanate, belonging to the technical field of mixing and stirring. Background Art

[0002] Bisphenol A cyanate is a polymer compound in the form of powder or crystal. It has excellent physical properties, such as high strength, high heat resistance, and excellent electrical insulation, and is therefore widely used in industry and daily life. Bisphenol A cyanate is produced by the polycondensation reaction of bisphenol A and cyanate base materials. The production process requires the mixing of bisphenol A powder with cyanate liquid and organic solvent for reaction. Currently, a certain amount of bisphenol A and cyanate are added to an organic solvent and then stirred. However, this can easily cause bisphenol A to agglomerate, which not only increases the mixing reaction time, but is also not conducive to the reaction. Utility Model Content

[0003] The utility model provides a base material mixing device for preparing bisphenol A cyanate, which solves the problem that a certain amount of bisphenol A and cyanate are put into an organic solvent and then stirred during mixing, which easily causes bisphenol A to agglomerate, thus not only increasing the mixing reaction time but also being disadvantageous for the reaction.

[0004] The utility model relates to a base material mixing device for preparing bisphenol A cyanate, comprising a mixing reaction tank, wherein a stirring shaft and a stirrer are arranged in the mixing reaction tank, a discharge pipe is arranged at the bottom of the mixing reaction tank, a driving motor is fixed at the top of the mixing reaction tank, a screw conveyor is fixed at the top of the mixing reaction tank, a powder bin is fixed at the inlet of the screw conveyor, a dispersion box is fixed at the left side of the top of the mixing reaction tank, a powder discharge pipe of the screw conveyor extends into the middle position of the top of the dispersion box, a vortex-shaped dispersion coil is arranged in the dispersion box, dispersion holes are evenly arranged at the bottom of the dispersion coil, a discharge pipe extending into the lower part of the mixing reaction tank is fixed at the bottom of the dispersion box, a solvent inlet pipe is arranged on the left side of the mixing reaction tank, a solvent delivery pump is arranged on the solvent inlet pipe, an upper delivery pipe and a lower delivery pipe are connected to the solvent inlet pipe, the upper delivery pipe is connected to the dispersion coil, a pipeline mixer is arranged on the lower delivery pipe, the lower delivery pipe extends into the lower part of the mixing reaction tank, the lower delivery pipe is connected to a liquid base material inlet pipe, and a liquid material delivery pump is arranged on the liquid base material inlet pipe.

[0005] As a preferred embodiment, a distribution ring pipe is provided at the lower part of the mixing reaction tank, and distribution holes are evenly provided at the bottom of the distribution ring pipe, so as to better distribute the incoming cyanate ester liquid and organic solvent mixed liquid, which is beneficial to the next step of mixing.

[0006] As a preferred embodiment, valves and flow meters are provided on the upper delivery pipe, the lower delivery pipe and the liquid base material inlet pipe, so that the liquid base material and the organic solvent can enter more accurately and the reaction effect is better.

[0007] As a preferred embodiment, a heating jacket is provided on the outer wall of the mixing reaction tank, and a temperature sensor is provided in the mixing reaction tank.

[0008] As a preferred embodiment, a conical dispersion disk is provided directly below the powder outlet pipe of the screw conveyor, and the top of the dispersion disk extends from the middle of the dispersion coil to the top of the dispersion coil, so that the powder base material is distributed more evenly and is more conducive to mixing with the powder and the organic solvent.

[0009] As a preferred embodiment, a support rod is fixed to the outer side of the bottom of the dispersion disk, and the support rod is fixed to the dispersion box, so as to facilitate the installation and fixation of the dispersion disk.

[0010] The utility model has the following beneficial effects:

[0011] By setting up a pipeline mixer, a dispersion box and a dispersion coil, bisphenol A and cyanate can be mixed with an organic solvent separately and then enter a mixing reaction tank for a mixing reaction. The mixing effect is better and the mixing speed is faster. Bisphenol A will not agglomerate, which is more conducive to the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 Partial structure diagram Figure 1 ;

[0014] Figure 3 for Figure 1 Partial structure diagram Figure 2 ;

[0015] Figure 4 It is a schematic diagram of the top structure of the distribution ring pipe;

[0016] In the figure: 1. powder silo, 2. drive motor, 3. stirring shaft, 4. mixing reaction tank, 5. stirrer, 6. heating jacket, 7. distribution ring pipe, 8. discharge pipe, 9. lower conveying pipe, 10. flow meter, 11. pipeline mixer, 12. liquid material conveying pump, 13. liquid base material inlet pipe, 14. solvent inlet pipe, 15. solvent conveying pump, 16. upper conveying pipe, 17. lower material pipe, 18. dispersion box, 19. dispersion disk, 20. dispersion coil, 21. screw conveyor, 22. dispersion hole. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with embodiments.

[0018] Embodiment 1, as Figures 1 to 4As shown, the utility model is a base material mixing device for preparing bisphenol A cyanate, comprising a mixing reaction tank 4, a mixing shaft 3 and a stirrer 5 are arranged in the mixing reaction tank 4, a discharge pipe 8 is arranged at the bottom of the mixing reaction tank 4, a driving motor 2 is fixed to the top of the mixing reaction tank 4, a screw conveyor 21 is fixed to the top of the mixing reaction tank 4, a powder bin 1 is fixed to the inlet of the screw conveyor 21, a dispersion box 18 is fixed to the left side of the top of the mixing reaction tank 4, a powder outlet pipe of the screw conveyor 21 extends into the middle position of the top of the dispersion box 18, and a vortex-shaped dispersion coil 2 is arranged in the dispersion box 18 0, dispersion holes 22 are evenly arranged at the bottom of the dispersion coil 20, a feed pipe 17 extending into the lower part of the mixing reaction tank 4 is fixed at the bottom of the dispersion box 18, a solvent inlet pipe 14 is arranged on the left side of the mixing reaction tank 4, a solvent delivery pump 15 is arranged on the solvent inlet pipe 14, the solvent inlet pipe 14 is connected with an upper delivery pipe 16 and a lower delivery pipe 9, the upper delivery pipe 16 is connected to the dispersion coil 20, a pipeline mixer 11 is arranged on the lower delivery pipe 9, the lower delivery pipe 9 extends into the lower part of the mixing reaction tank 4, the lower delivery pipe 9 is connected with a liquid base material inlet pipe 13, and a liquid material delivery pump 12 is arranged on the liquid base material inlet pipe 13.

[0019] During operation, a fixed amount of bisphenol A powder is put into the powder bin 1, and then the drive motor 2, the screw conveyor 21, the solvent delivery pump 15 and the liquid material delivery pump 12 are started. The organic solvent entering from the solvent inlet pipe 14 is divided into two parts. One part enters the pipeline mixer 11 through the lower delivery pipe 9 and mixes with the cyanate liquid entering from the liquid base material inlet pipe 13, and then enters the lower part of the mixing reaction tank 4. The other part enters the dispersion coil 20 through the upper delivery pipe 16, is evenly sprayed out from the dispersion hole 22, is mixed with the bisphenol A powder base material entering the dispersion box 18, and then enters the mixing reaction tank 4 from the lower feeding pipe 17, so that the final mixing reaction is carried out in the mixing reaction tank 4.

[0020] Embodiment 2, on the basis of embodiment 1, a distribution ring pipe 7 is provided at the lower part of the mixing reaction tank 4, and distribution holes are evenly provided at the bottom of the distribution ring pipe 7.

[0021] The upper delivery pipe 16 , the lower delivery pipe 9 and the liquid base material inlet pipe 13 are all provided with valves and flow meters 10 .

[0022] A heating jacket 6 is provided on the outer wall of the mixing reaction tank 4 , and a temperature sensor is provided inside the mixing reaction tank 4 .

[0023] A conical dispersion plate 19 is provided directly below the powder outlet pipe of the screw conveyor 21, and the top of the dispersion plate 19 extends from the middle of the dispersion coil 20 to the top of the dispersion coil 20. The powder discharged from the powder outlet pipe of the screw conveyor 21 will be dispersed and guided through the dispersion plate 19, and then sprayed and mixed by the organic solvent sprayed from the dispersion holes 22 on the dispersion coil 20 when the dispersion plate 19 slides downward. A reinforcing rod is provided on the dispersion coil 20. The dispersion plate 19 is a hollow structure.

[0024] A support rod is fixed to the outer side of the bottom of the dispersion plate 19 , and the support rod is fixed on the dispersion box 18 .

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0026] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

Claims

1. A base material mixing device for preparing bisphenol A cyanate, comprising a mixing reaction tank (4), wherein a stirring shaft (3) and a stirrer (5) are arranged in the mixing reaction tank (4), a discharge pipe (8) is arranged at the bottom of the mixing reaction tank (4), and a driving motor (2) is fixed at the top of the mixing reaction tank (4), characterized in that: A screw conveyor (21) is fixed on the top of the mixing reaction tank (4), a powder bin (1) is fixed at the inlet of the screw conveyor (21), a dispersion box (18) is fixed on the left side of the top of the mixing reaction tank (4), a powder outlet pipe of the screw conveyor (21) extends into the middle position of the top of the dispersion box (18), a vortex-shaped dispersion coil (20) is arranged in the dispersion box (18), dispersion holes (22) are evenly arranged at the bottom of the dispersion coil (20), a feed pipe (22) extending into the lower part of the mixing reaction tank (4) is fixed at the bottom of the dispersion box (18), and a powder outlet pipe (20) extending into the lower part of the mixing reaction tank (4) is fixed at the bottom of the dispersion box (18). 17), a solvent inlet pipe (14) is provided on the left side of the mixing reaction tank (4), a solvent delivery pump (15) is provided on the solvent inlet pipe (14), the solvent inlet pipe (14) is connected to an upper delivery pipe (16) and a lower delivery pipe (9), the upper delivery pipe (16) is connected to a dispersion coil (20), a pipeline mixer (11) is provided on the lower delivery pipe (9), the lower delivery pipe (9) extends into the lower part of the mixing reaction tank (4), the lower delivery pipe (9) is connected to a liquid base material inlet pipe (13), and a liquid material delivery pump (12) is provided on the liquid base material inlet pipe (13).

2. The base material mixing device for preparing bisphenol A cyanate according to claim 1, characterized in that: A distribution ring pipe (7) is provided at the lower part of the mixing reaction tank (4), and distribution holes are evenly provided at the bottom of the distribution ring pipe (7).

3. The base material mixing device for preparing bisphenol A cyanate according to claim 2, characterized in that: The upper delivery pipe (16), the lower delivery pipe (9) and the liquid base material inlet pipe (13) are all provided with valves and flow meters (10).

4. The base material mixing device for preparing bisphenol A cyanate according to claim 1, characterized in that: A heating jacket (6) is provided on the outer wall of the mixing reaction tank (4), and a temperature sensor is provided inside the mixing reaction tank (4).

5. The base material mixing device for preparing bisphenol A cyanate according to claim 1 or 2, characterized in that: A conical dispersion plate (19) is arranged directly below the powder outlet pipe of the screw conveyor (21), and the top of the dispersion plate (19) extends from the middle of the dispersion coil (20) to the top of the dispersion coil (20).

6. The base material mixing device for preparing bisphenol A cyanate according to claim 5, characterized in that: A support rod is fixed to the outer side of the bottom of the dispersion plate (19), and the support rod is fixed to the dispersion box (18).

Images