CN217015391U - A purification equipment for photoinitiator - Google Patents
A purification equipment for photoinitiator Download PDFInfo
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- CN217015391U CN217015391U CN202122129803.5U CN202122129803U CN217015391U CN 217015391 U CN217015391 U CN 217015391U CN 202122129803 U CN202122129803 U CN 202122129803U CN 217015391 U CN217015391 U CN 217015391U
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Abstract
The application discloses a purification equipment for photoinitiator installs the temperature control inner tube, first liquid storage cylinder, second liquid storage cylinder, distillation plant and the integrated installation of filter equipment of purification on the cushion cap, and occupation space is little, and purification efficiency is high, can effectively improve photoinitiator's qualification rate and purity. The utility model solves the problems of impure products and low qualified rate in the existing photoinitiator production.
Description
Technical Field
The utility model relates to the technical field of chemical engineering, in particular to a purification device for a photoinitiator.
Background
In the field of photocuring, photoinitiators having high photosensitivity, high stability and ease of preparation are gaining popularity. The existing photoinitiator has slow synthetic reaction, and the obtained product has low purity and low product percent of pass.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the prior art provides a purification device for the photoinitiator, so as to solve the problems of impure products and low percent of pass of the products produced by the prior photoinitiator.
To achieve the above object, there is provided a purification apparatus for a photoinitiator, comprising:
the bearing platform is internally provided with an upper cavity and a lower cavity, and the side part of the bearing platform is connected with a bearing plate;
the temperature control inner cylinder is arranged in the heat preservation outer cylinder, a plurality of annular ducts are formed in the side wall of the temperature control inner cylinder and are arranged in the vertical direction, and two adjacent annular ducts are communicated with each other;
the first liquid storage cylinder is used for containing a coolant and is arranged in the upper cavity, the first liquid storage cylinder is connected with an input pipe and an output pipe, the input pipe is connected with an annular pore passage at the upper part of the temperature control inner cylinder, the output pipe is connected with an annular pore passage at the lower part of the temperature control inner cylinder, and a refrigerating device is arranged on the input pipe;
the second liquid storage cylinder is used for containing a purified solvent and is arranged in the lower cavity, the second liquid storage cylinder is connected to the temperature control inner cylinder through a liquid conveying pipe, and the liquid conveying pipe is provided with a heating device;
the filtering device is arranged on the upper part of the supporting plate and is connected with the temperature control inner cylinder; and
and the distillation device is arranged at the lower part of the supporting plate, is connected with a liquid outlet of the filtering device, and is connected with the second liquid storage cylinder through a return pipe.
Further, the temperature control inner cylinder comprises:
the metal cylinder is vertically arranged inside the heat-preservation outer cylinder, a gap is formed between the metal cylinder and the inner wall of the heat-preservation outer cylinder, the metal cylinder is provided with an upper closed end and a lower closed end, the lower closed end is connected to the return pipe, and the upper closed end is connected to the infusion pipe;
the annular pipes are hooped outside the metal cylinder and are arranged at intervals along the axial direction of the metal cylinder, and the annular hole passages are formed inside the annular pipes; and
and the connecting pipe is connected between two adjacent annular pipes.
Furthermore, a notch is formed on the inner side of the annular tube facing the metal cylinder, and the outer side wall of the metal cylinder is shielded in the notch.
Furthermore, the outer mounting of going up the blind end has the motor, the pivot is rotationally installed to the inside of going up the blind end, motor transmission connect in the pivot, the periphery of pivot is connected with stirring vane.
Further, the pivot is vertical to be set up, stirring vane connect in the lower part of pivot, the upper portion of pivot is connected with branch, branch is followed the radial direction setting of pivot, the sub-unit connection of branch has the defoaming thorn, the defoaming thorn orientation the lower blind end sets up.
Furthermore, the upper portion of pivot movably overlaps and is equipped with the axle sleeve, the axle sleeve through the lift cylinder install with liftable in go up the inboard of blind end, branch connect in the axle sleeve.
Furthermore, a liquid level sensor is arranged inside the metal cylinder.
Furthermore, the heating device is arranged in the middle of the infusion tube, the front end of the infusion tube, which is close to the second liquid storage cylinder, is attached to the tail end of the return tube, and a heat exchanger is arranged between the front end of the infusion tube and the tail end of the return tube.
The purification equipment for the photoinitiator has the beneficial effects that the temperature control inner cylinder, the first liquid storage cylinder, the second liquid storage cylinder, the distillation device and the filtering device for purification are integrally arranged on the bearing platform, so that the occupied space is small, the purification efficiency is high, and the qualification rate and the purity of the photoinitiator can be effectively improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a purification apparatus for a photoinitiator according to an embodiment of the present invention.
FIG. 2 is a schematic structural diagram of the interior of the temperature-controlled inner cylinder according to the embodiment of the present invention.
FIG. 3 is a schematic perspective view of a temperature-controlled inner cylinder according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not to be construed as limiting the utility model. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 3, the present invention provides a purification apparatus for a photoinitiator, including: bearing platform 1, heat preservation urceolus 2, first liquid storage cylinder 3, second liquid storage cylinder 4, filter equipment 5 and distillation plant 6.
Specifically, the heat-insulating outer cylinder 2 is mounted on the upper part of the bearing platform. The platform 1 is formed with an upper cavity a and a lower cavity b therein. The outer side of the platform 1 is connected with a support plate 11. The support plate is arranged in the horizontal direction. The bearing plate is arranged below the heat preservation outer cylinder.
The temperature control inner cylinder 21 is arranged in the heat preservation outer cylinder 2. The temperature control inner cylinder is used for accommodating the purification solvent and the photoinitiator. The side wall of the temperature control inner cylinder 21 is internally provided with a plurality of annular ducts. The annular ducts are arranged in the vertical direction. Two adjacent annular pore canals are communicated with each other. The annular ducts are communicated with each other to form a fluid channel for containing coolant. The coolant may be brine.
The first liquid storage cylinder 3 is arranged in the upper cavity a. The first liquid storage cylinder 3 is used for containing coolant. The first reservoir 3 is connected to an input pipe 31 and an output pipe 32. The inlet pipe 31 is connected to an annular passage in the upper part of the temperature-controlled inner cylinder 21. The output pipe 32 is connected to the annular passage of the lower part of the temperature-controlled inner cylinder 21. The input pipe 31 is equipped with a water pump and cooling device 33. The water pump is installed in the one end that is close to first liquid storage cylinder of input tube. The middle part of the input pipe is provided with a refrigerating device, when the temperature control inner cylinder needs to be cooled, the refrigerating device cools the coolant in the output pipe, the output pipe inputs the coolant contained in the first liquid storage cylinder into the annular hole channel at the lower part of the temperature control inner cylinder 21, the coolant flows through the fluid channel to reduce the temperature inside and outside the temperature control inner cylinder, and the coolant flows back into the first liquid storage cylinder through the annular hole channel at the lower part of the temperature control inner cylinder 21 and the output pipe. Thus, a cooling circulation loop of the coolant is formed in a reciprocating manner, and the temperature control inner cylinder is continuously cooled.
The second liquid storage cylinder 4 is arranged in the lower cavity b. The second liquid storage cylinder 4 is used for containing a purifying solvent. The second liquid storage cylinder 4 is connected to the temperature-controlled inner cylinder 21 through a liquid conveying pipe 41. The infusion tube 41 is equipped with a heating device 42 and a water pump. In this example, the photoinitiator amino aryl alkyl ketone photoinitiator, in this example, the photoinitiator was 2- (4-methylbenzyl) -2- (dimethylamino) -1- (4-morpholinophenyl) -1-butanone. The purification solvent is cyclohexane.
The filter unit 5 is mounted on the upper portion of the support plate 11. The filtering device 5 is connected with the temperature control inner cylinder 21 through a pipeline. The distillation apparatus 6 is disposed below the support plate 11. The distillation device 6 is connected with the liquid outlet of the filtering device 5. The distillation apparatus 6 is connected to the second reservoir 4 via a return conduit 61.
The working principle of the purification equipment for the photoinitiator is as follows:
when the photoinitiator is purified by using the purification solvent, the purification solvent is conveyed into the temperature control inner cylinder through a liquid conveying pipe, and the purification solvent is heated and heated by a heating device in the liquid conveying pipe. During purification, the purification solvent is heated and conveyed to the temperature-control inner cylinder, meanwhile, the photoinitiator to be processed is injected into the temperature-control inner cylinder through the injection port of the temperature-control inner cylinder, at the moment, the coolant is accommodated in the first liquid storage cylinder and is not conveyed into the fluid channel, so that the heat preservation of the purification solvent and the photoinitiator in the temperature-control inner cylinder is maintained for 2-3 hours, and the temperature is 70-80 ℃. And then, starting the refrigerating device and inputting a coolant into the fluid channel through the input pipe to cool the temperature control inner cylinder, so that the photoinitiator is crystallized and separated out.
And after the crystal is separated out, filtering the solution in the temperature-controlled inner cylinder through a filtering device, and separating to obtain the photoinitiator crystal and the solvent. The solvent obtained by filtration is input into the distillation device for heating through a pipeline 51, and the solvent is heated into steam for purification and absorption and flows into the second liquid storage cylinder through a return pipe for recycling or is heated again and conveyed into the temperature-controlled inner cylinder for next purification. And discharging the residual impurities in the distillation device through a waste discharge pipe.
The purification equipment for the photoinitiator integrally installs the purified temperature control inner cylinder, the first liquid storage cylinder, the second liquid storage cylinder, the distillation device and the filtering device on the bearing platform, occupies small space, has high purification efficiency, and can effectively improve the qualification rate and the purity of the photoinitiator.
In this embodiment, the temperature-controlled inner cylinder 21 includes: a metal cylinder 211, a plurality of ring pipes 212, and a connection pipe 213.
As shown in fig. 2 and 3, the metal tube 211 is vertically disposed inside the heat-insulating outer tube 2, and a gap is formed between the metal tube 211 and the inner wall of the heat-insulating outer tube 2. The metal cylinder 211 has an upper closed end and a lower closed end. The upper closed end is provided with an injection port for injecting the photoinitiator to be processed. The upper closed end is connected to the infusion tube 41. The lower closed end is connected to a return pipe 61. A plurality of annular tubes 212 are provided around the outside of the metal cylinder 211. The plurality of annular tubes 212 are arranged at intervals in the axial direction of the metal cylinder 211. The annular tube 212 has an annular passage formed therein. The connection pipe 213 is connected between the adjacent two ring pipes 212.
In order to improve heat conduction efficiency, the inner side of the annular tube 212 facing the metal cylinder 211 is formed with a notch. The outer wall of the metal cylinder 211 covers the gap. In this embodiment, the cross-section of the annular tube is C-shaped.
In order to improve the purification efficiency, a motor 22 is installed outside the upper closed end. A rotating shaft 23 is rotatably installed inside the upper closed end. The motor 22 is drivingly connected to the rotating shaft 23. The circumferential surface of the rotating shaft 23 is connected with stirring blades 24.
In this embodiment, the rotating shaft 23 is vertically disposed, and the upper end of the rotating shaft is rotatably mounted at the upper closed end through a bearing and coaxially connected to the electric output shaft. The stirring blade 24 is connected to the lower end of the rotating shaft 23. The middle part of the rotating shaft 23 is connected with a supporting rod 26. The struts 26 are arranged in the radial direction of the rotation shaft 23. The lower part of the strut 26 is connected with a defoaming thorn 27. The anti-foaming pricks 27 are located towards the lower closed end. In order to reduce the formation of foam during the stirring process, the defoaming pricks can puncture the foam on the liquid surface to reduce the amount of foam.
In a preferred embodiment, a shaft sleeve 25 is movably sleeved on the upper portion of the rotating shaft 23. The shaft sleeve can move along the axial direction of the rotating shaft. The boss 25 is liftably mounted to the inside of the upper closed end by a lift cylinder 28. Strut 26 is connected to sleeve 25. The height of the defoaming thorn is controlled by the lifting oil cylinder, so that the sharp end of the defoaming thorn is flush with the liquid level in the temperature control inner cylinder.
In the present embodiment, a liquid level sensor is mounted inside the metal cylinder 211. The liquid level sensor is used for collecting the liquid level in the metal cylinder, and then the lifting oil cylinder is used for adjusting the height liquid level of the puncture tip of the defoaming thorn to be flush.
In a preferred embodiment, the heating device 42 is disposed in the middle of the infusion tube 41. The front end of the infusion tube 41 close to the second liquid storage cylinder 4 is jointed with the tail end of the return tube 61. A heat exchanger 62 is installed between the leading end of the liquid feeding tube 41 and the trailing end of the return tube 61. The heating device is an electric heater. Before the solvent is heated by the heating device, the waste heat of the solvent in the return pipe is absorbed by the heat exchanger to be preheated, and the energy utilization efficiency is improved.
In this embodiment, the filtering device comprises a hopper and a filtering net laid in the hopper. The crystallized solvent is discharged to the hopper from the bottom of the metal cylinder through the liquid outlet pipe and the control valve arranged on the liquid outlet pipe, and the crystallized solvent is intercepted through the filtration of the filter screen and is input into the distillation device through the pipeline.
In this embodiment, the distillation apparatus includes a hopper erected at one side of the support platform and an electric heater installed in the hopper. The solvent is heated in the distillation device and flows back to the second liquid storage cylinder through the return pipe in a vapor purification absorption mode.
The foregoing description is only exemplary of the preferred embodiments of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the utility model herein disclosed is not limited to the particular combination of features disclosed herein, and that other combinations of features disclosed herein or their equivalents, in any combination, are also encompassed by the utility model without departing from the spirit of the utility model. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (8)
1. A purification apparatus for a photoinitiator, comprising:
the bearing platform is internally provided with an upper cavity and a lower cavity, and the side part of the bearing platform is connected with a bearing plate;
the temperature control inner cylinder is arranged in the heat preservation outer cylinder, a plurality of annular ducts are formed in the side wall of the temperature control inner cylinder and are arranged in the vertical direction, and two adjacent annular ducts are communicated with each other;
the first liquid storage cylinder is used for containing a coolant and is arranged in the upper cavity, the first liquid storage cylinder is connected with an input pipe and an output pipe, the input pipe is connected with an annular hole channel in the upper part of the temperature control inner cylinder, the output pipe is connected with an annular hole channel in the lower part of the temperature control inner cylinder, and a refrigerating device is arranged on the input pipe;
the second liquid storage cylinder is used for containing a purified solvent and is arranged in the lower cavity, the second liquid storage cylinder is connected to the temperature control inner cylinder through a liquid conveying pipe, and the liquid conveying pipe is provided with a heating device;
the filtering device is arranged on the upper part of the supporting plate and is connected with the temperature control inner cylinder; and
and the distillation device is arranged at the lower part of the supporting plate, is connected with a liquid outlet of the filtering device, and is connected with the second liquid storage cylinder through a return pipe.
2. The apparatus of claim 1, wherein the temperature-controlled inner cylinder comprises:
the metal cylinder is vertically arranged inside the heat-preservation outer cylinder, a gap is formed between the metal cylinder and the inner wall of the heat-preservation outer cylinder, the metal cylinder is provided with an upper closed end and a lower closed end, the lower closed end is connected to the return pipe, and the upper closed end is connected to the infusion tube;
the annular pipes are hooped outside the metal cylinder and are arranged at intervals along the axial direction of the metal cylinder, and the annular hole passages are formed inside the annular pipes; and
and the connecting pipe is connected between two adjacent annular pipes.
3. The apparatus of claim 2, wherein an inner side of the annular tube facing the metal can is formed with a notch, and an outer sidewall of the metal can is shielded from the notch.
4. The apparatus of claim 2, wherein a motor is installed at an outer portion of the upper closed end, a rotating shaft is rotatably installed at an inner portion of the upper closed end, the motor is drivingly connected to the rotating shaft, and stirring blades are connected to a circumferential surface of the rotating shaft.
5. The purification apparatus for photoinitiator according to claim 4, wherein the rotating shaft is vertically arranged, the stirring blade is connected to the lower part of the rotating shaft, a strut is connected to the upper part of the rotating shaft, the strut is arranged along the radial direction of the rotating shaft, a defoaming thorn is connected to the lower part of the strut, and the defoaming thorn is arranged towards the lower closed end.
6. The apparatus of claim 5, wherein a sleeve is movably fitted over an upper portion of the shaft, the sleeve is liftably mounted to an inner side of the upper closed end through a lift cylinder, and the support rod is connected to the sleeve.
7. The apparatus of claim 6, wherein a liquid level sensor is installed inside the metal cylinder.
8. The apparatus of claim 1, wherein the heating device is disposed in the middle of the infusion tube, the infusion tube is attached to the rear end of the return tube at the front end thereof close to the second liquid storage cylinder, and a heat exchanger is disposed between the front end of the infusion tube and the rear end of the return tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122129803.5U CN217015391U (en) | 2021-09-05 | 2021-09-05 | A purification equipment for photoinitiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122129803.5U CN217015391U (en) | 2021-09-05 | 2021-09-05 | A purification equipment for photoinitiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217015391U true CN217015391U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122129803.5U Active CN217015391U (en) | 2021-09-05 | 2021-09-05 | A purification equipment for photoinitiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217015391U (en) |
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2021
- 2021-09-05 CN CN202122129803.5U patent/CN217015391U/en active Active
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