CN216172301U - Rapid bromination initiating device in propyl bromoketal/methyl bromoketal production - Google Patents
Rapid bromination initiating device in propyl bromoketal/methyl bromoketal production Download PDFInfo
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- CN216172301U CN216172301U CN202122486059.4U CN202122486059U CN216172301U CN 216172301 U CN216172301 U CN 216172301U CN 202122486059 U CN202122486059 U CN 202122486059U CN 216172301 U CN216172301 U CN 216172301U
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Abstract
The utility model provides a quick bromination initiation device in propyl bromine ketal/methyl bromine ketal production, relates to bromination reaction equipment technical field, including reation kettle, be provided with first heating device on the reation kettle, still including initiating the jar, be provided with second feed liquid import on the reation kettle, trigger liquid entry and second bromine dropwise add mouth, be provided with second heating device on the initiation jar, be provided with first feed liquid import on the initiation jar, trigger liquid export and first bromine dropwise add mouth, through pipeline and measuring pump intercommunication between trigger liquid entry and the trigger liquid export. The process of high temperature initiation is moved into the initiation tank, so that the process of repeated heating and cooling is avoided, the energy consumption is reduced, and the bromination reaction is slowly started through the initiation liquid, so that the generation of by-product impurities is reduced, and the product quality is improved.
Description
Technical Field
The utility model relates to the technical field of bromination reaction equipment, in particular to a rapid bromination initiation device in propyl bromoketal/methyl bromoketal production.
Background
In the production of propyl bromoketal/methyl bromoketal, bromination reaction is required to be carried out, the original reaction is to heat a feed liquid to be brominated to 70 ℃, dropwise add 10-20 kg of bromine to initiate bromination reaction, after the initiation is successful, the temperature of the feed liquid is reduced to 35-40 ℃, and the bromine is continuously dropwise added to carry out bromination reaction, the processes are carried out in the same reaction kettle, so that the reaction kettle needs to be heated and cooled firstly, the heating and cooling speeds are slow, the production period is prolonged, energy consumption exists, the bromination reaction is unstable, byproduct impurities are easily generated in the high-temperature initiation process, and the product quality is influenced.
Disclosure of Invention
In view of the above drawbacks, the present invention provides a fast bromination initiation device in propyl bromoketal/methyl bromoketal production, which has no consumption of capacity, short production period, stable reaction, and few reaction byproducts.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a quick bromination initiation device in propyl bromine ketal/methyl bromine ketal production, includes reation kettle, reation kettle is last to be provided with first heating device, still including initiating the jar, reation kettle is last to be provided with second feed liquid import, priming liquid entry and second bromine dropwise add mouth, be provided with second heating device on the initiating jar, be provided with first feed liquid import, priming liquid export and first bromine dropwise add mouth on the initiating jar, priming liquid entry with communicate through pipeline and measuring pump between the priming liquid export.
Wherein, be provided with the pipe on the priming solution entry, the pipe extends into inside the reation kettle.
The bromine storage tank is characterized by further comprising a bromine storage tank, a delivery pump is arranged on a liquid outlet of the bromine storage tank, a liquid outlet end of the delivery pump is respectively communicated with the first bromine dripping port and the second bromine dripping port through pipelines, and bromine dripping devices are respectively arranged on the first bromine dripping port and the second bromine dripping port.
The bromine dripping device comprises a dripping pipe fixed on the first bromine dripping port or the second bromine dripping port, an electromagnetic valve arranged corresponding to the first bromine dripping port or the second bromine dripping port and positioned on the pipeline, and the electromagnetic valve is electrically connected with the PLC system.
The reaction kettle is characterized in that an annular pipe is fixedly arranged on the inner wall of the reaction kettle, a plurality of liquid outlet holes are uniformly formed in the annular pipe, and the annular pipe is communicated with the guide pipe.
Wherein the liquid outlet end of the metering pump is respectively connected with the plurality of reaction kettles through pipelines.
Wherein, agitating unit is provided with respectively on initiating jar and the reation kettle.
Wherein the first heating device and the second heating device are both water heating devices.
After the technical scheme is adopted, the utility model has the beneficial effects that:
the rapid bromination initiation device in the production of propyl bromoketal/methyl bromoketal comprises a reaction kettle, a first heating device and an initiation tank, wherein the reaction kettle is provided with a second feed liquid inlet, an initiation liquid inlet and a second bromine dripping port, the initiation tank is provided with a second heating device, the initiation tank is provided with a first feed liquid inlet, an initiation liquid outlet and a first bromine dripping port, and the initiation liquid inlet and the initiation liquid outlet are communicated with each other through a pipeline and a metering pump. The feed liquid is placed in an initiation tank, the temperature is raised to 70 ℃ through a second heating device, meanwhile, the temperature of a reaction kettle is raised to 35-40 ℃ through a first heating device, then bromine is dropwise added into the initiation tank, after the bromination reaction is initiated, the initiation liquid is introduced into the reaction kettle through a pipeline and a metering pump, partial bromination is firstly carried out, and meanwhile, bromine is dropwise added into the reaction kettle to carry out bromination reaction until the reaction is finished. According to the utility model, the initiation reaction and the bromination reaction are separated, so that the temperature rising and cooling processes of the reaction kettle are avoided, and the reaction kettle and the initiation tank are simultaneously heated to the preset temperature, so that the period is shortened, and the energy consumption is reduced; because initiate the bromination under higher temperature, it is too fast to release heat, and the temperature is wayward, can produce some impurity at the bromination cauldron, and through initiating the process immigration and initiating the jar, initiate behind the part feed liquid, will initiate the liquid and add in the bromination cauldron, can be by initiating other materials in the slower initiation bromination cauldron of liquid like this to easy control bromination temperature is unlikely to lead to more accessory substance impurity production because of the high of temperature rise, thereby has guaranteed the quality of product.
Because the bromine dripping devices are respectively arranged on the first bromine dripping port and the second bromine dripping port, bromine is added in a dripping mode, so that the reaction speed can be reasonably controlled, and the production of byproducts is effectively reduced.
Because bromine dropwise add device is including fixing the dropwise add pipe on first bromine dropwise add mouth or second bromine dropwise add mouth and setting up the solenoid valve on the pipeline, and the solenoid valve electricity is connected the PLC system, can change the dropwise add speed of bromine at any time through PLC control solenoid valve to control reaction rate.
Because the fixed annular pipe that is provided with on reation kettle is inside, evenly be provided with a plurality of liquid holes on the annular pipe, annular pipe intercommunication pipe to realize that the priming liquid multiple spot gets into the bromination cauldron, realize the multiple spot initiation, thereby accelerated the initiation efficiency of bromination cauldron, improved work efficiency greatly.
Because the liquid outlet end of the metering pump is respectively connected with a plurality of reaction kettles through pipelines, the bromination reaction of a plurality of reaction kettles can be initiated by one initiation tank, the working efficiency is improved, the reaction of the plurality of reaction kettles is initiated by one time of temperature rise of the initiation tank, the batch production is favorably realized, and the energy consumption is reduced.
In conclusion, the rapid bromination initiation device in the production of propyl bromoketal/methyl bromoketal solves the technical problems of high energy consumption and more byproduct impurities in the production of propyl bromoketal/methyl bromoketal in the prior art, and avoids the processes of repeated heating and cooling by transferring the high-temperature initiation process into the initiation tank, so that the energy consumption is reduced, and the bromination reaction is slowly started by the initiation liquid, so that the generation of byproduct impurities is reduced, and the product quality is improved.
Drawings
FIG. 1 is a schematic structural diagram of a fast bromination initiating device in the production of propyl bromoketal/methyl bromoketal according to the present invention;
FIG. 2 is a schematic diagram of the reactor of FIG. 1;
in the figure: 1. the device comprises a reaction kettle, 11, a first heating device, 12, a second feed liquid inlet, 13, a priming liquid inlet, 131, a guide pipe, 132, an annular pipe, 133, a liquid outlet, 14, a second bromine dripping port, 2, an initiation tank, 21, a second heating device, 22, a first feed liquid inlet, 23, a priming liquid outlet, 24, a first bromine dripping port, 3, a metering pump, 4, a bromine storage tank, 41, a delivery pump, 5, a dripping pipe, 6 and an electromagnetic valve.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples.
All the orientations referred to in the present specification are based on the orientations shown in the drawings, and only represent relative positional relationships, not absolute positional relationships.
As shown in figure 1, a quick bromination initiation device in propyl bromine ketal/methyl bromine ketal production, including reation kettle 1, reation kettle 1 is last to be provided with first heating device 11, and first heating device 11 is water heating device, heats reation kettle 1 through the circulating water. The reaction kettle 1 is provided with a second feed liquid inlet 12, an initiation liquid inlet 13 and a second bromine dripping port 14, the reaction feed liquid is injected into the reaction kettle 1 from the second feed liquid inlet 12, the initiation liquid is injected from the initiation liquid inlet 13, the initiation liquid can initiate bromination reaction of the reaction feed liquid, and bromine is dripped from the second bromine dripping port 14. The guiding pipe 131 is arranged on the priming liquid inlet 13, the guiding pipe 131 extends into the reaction kettle 1, the end of the guiding pipe 131 is fixedly provided with the annular pipe 132, the annular pipe 132 is fixed on the inner wall of the reaction kettle 1, the annular pipe 132 is uniformly provided with a plurality of liquid outlet holes 133, the priming liquid enters the annular pipe 132 from the guiding pipe 131, and then enters the liquid to be reacted in the reaction kettle 1 from the liquid outlet holes 133.
As shown in fig. 1 and fig. 2, the initiation device for fast bromination in propyl bromoketal/methyl bromoketal production further comprises an initiation tank 2, a second heating device 21 is arranged on the initiation tank 2, the second heating device 21 is a water heating device, and the initiation tank 2 is heated by circulating water. The initiation tank 2 is provided with a first feed liquid inlet 22, an initiation liquid outlet 23 and a first bromine dropwise adding port 24, the initiation liquid inlet 13 and the initiation liquid outlet 23 are communicated with the metering pump 3 through a pipeline, and the metering pump 3 can meter and introduce the initiation liquid into the initiation liquid inlet 13 from the initiation liquid outlet 23.
As shown in fig. 1 and fig. 2, the fast bromination initiation device in propyl bromoketal/methyl bromoketal production further comprises a bromine storage tank 4, a delivery pump 41 is arranged on a liquid outlet of the bromine storage tank 4, a liquid outlet end of the delivery pump 41 is respectively communicated with the first bromine dropwise adding port 24 and the second bromine dropwise adding port 14 through a pipeline, and bromine dropwise adding devices are respectively arranged on the first bromine dropwise adding port 24 and the second bromine dropwise adding port 14. The bromine dripping device comprises a dripping pipe 5 fixed on the first bromine dripping port 24 or the second bromine dripping port 14 and an electromagnetic valve 6 which is arranged corresponding to the first bromine dripping port 24 or the second bromine dripping port 14 and is positioned on the pipeline, and the electromagnetic valve 6 is electrically connected with a PLC system (not shown in the figure). The electromagnetic valve 6 is controlled by a PLC system, so that the adding speed of bromine into the reaction kettle 1 and the initiation tank 2 is controlled, and the controllability of the bromination reaction is improved.
As shown in fig. 1, the liquid outlet end of the metering pump 3 is connected to a plurality of reaction kettles 1 through pipes, and the present invention is provided with two reaction kettles 1, and other number can be designed according to the needs in practical application, which is not limited by the present invention. A measurable electromagnetic valve is respectively arranged on the pipeline corresponding to each reaction kettle 1, thereby controlling the amount of the priming liquid entering each reaction kettle 1. Through parallelly connected a plurality of reation kettle 1 to initiating jar 2 on to realize that one initiating jar 2 initiates the bromination reaction of a plurality of reation kettle 1, thereby improved reaction efficiency.
As shown in FIG. 1 and FIG. 2, stirring devices are provided in the initiation tank 2 and the reaction vessel 1, respectively. Set up agitating unit, can accelerate the efficiency of reaction, be favorable to thermal giving off moreover, make reation kettle 1 with initiate the heat in the jar 2 balanced. In order to control the reaction temperature, thermometers are respectively arranged in the initiation tank 2 and the reaction kettle 1, the thermometers are electrically connected with the PLC system, the temperature in the initiation tank 2 and the temperature in the reaction kettle 1 are monitored at any time through the thermometers and are transmitted to the PLC system, and the PLC system controls the electromagnetic valve 6 to control the dropping speed of the bromine, so that the reaction temperature is balanced.
As shown in fig. 1 and fig. 2, the working flow of the fast bromination initiation device in the production of propyl bromoketal/methyl bromoketal of the present invention is as follows:
part of the material liquid to be reacted is placed in the initiation tank 2, the temperature is raised to 70 degrees, meanwhile, the material liquid to be reacted is placed in the reaction kettle 1, the temperature is raised to 35-40 degrees of bromination reaction temperature, then the bromine storage tank 4 controls the electromagnetic valve 6 through the PLC system to drop bromine to the initiation tank 2, after the bromination reaction is initiated, the initiation liquid is introduced into the reaction kettle 1 through the metering pump 3 and the measurable electromagnetic valve, then enters the reaction kettle 1 from the liquid outlet hole 133, local bromination is firstly carried out, and meanwhile, the bromine storage tank 4 drops bromine into the reaction kettle 1 to carry out bromination reaction until the reaction is finished.
According to the rapid bromination initiation device in the production of propyl bromoketal/methyl bromoketal, disclosed by the utility model, the high-temperature initiation process is transferred into the initiation tank, so that the processes of repeated heating and cooling are avoided, the energy consumption is reduced, and the bromination reaction is slowly started through the initiation liquid, so that the generation of byproduct impurities is reduced, and the product quality is improved.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception, and fall within the scope of the present invention.
Claims (8)
1. The utility model provides a quick bromination initiation device in propyl bromine ketal/methyl bromine ketal production, includes reation kettle, the last first heating device that is provided with of reation kettle, its characterized in that still includes and initiates the jar, last second feed liquid import, the priming liquid entry and the second bromine dropwise add mouth of being provided with of reation kettle, be provided with second heating device on the initiation jar, be provided with first feed liquid import, priming liquid export and first bromine dropwise add mouth on the initiation jar, through pipeline and measuring pump intercommunication between priming liquid entry and the priming liquid export.
2. The apparatus for initiating rapid bromination in the production of propyl bromoketal/methyl bromoketal as claimed in claim 1, wherein said inlet of said initiation liquid is provided with a conduit, and said conduit extends into said reaction vessel.
3. The rapid bromination initiation device in propyl bromoketal/methyl bromoketal production according to claim 1, further comprising a bromine storage tank, wherein a delivery pump is disposed on a liquid outlet of the bromine storage tank, a liquid outlet end of the delivery pump is respectively communicated with the first bromine dropping port and the second bromine dropping port through a pipeline, and bromine dropping devices are respectively disposed on the first bromine dropping port and the second bromine dropping port.
4. The rapid bromination initiation device in the production of propyl bromoketal/methyl bromoketal according to claim 3, wherein the bromine dripping device comprises a dripping pipe fixed on the first bromine dripping port or the second bromine dripping port, and an electromagnetic valve arranged on the pipeline corresponding to the first bromine dripping port or the second bromine dripping port, and the electromagnetic valve is electrically connected with a PLC system.
5. The device for initiating rapid bromination in the production of propyl bromoketal/methyl bromoketal as claimed in claim 2, wherein an annular tube is fixedly arranged on the inner wall of the reaction kettle, a plurality of liquid outlet holes are uniformly arranged on the annular tube, and the annular tube is communicated with the guide tube.
6. The initiation device for the rapid bromination in the production of propyl bromoketal/methyl bromoketal as claimed in claim 1, wherein the outlet end of said metering pump is connected to a plurality of said reaction vessels respectively through pipes.
7. The initiation device for the rapid bromination in the production of propyl bromoketal/methyl bromoketal as claimed in claim 1, wherein the initiation tank and the reaction kettle are respectively provided with a stirring device.
8. The initiation device for the fast bromination in the production of propyl bromoketal/methyl bromoketal as claimed in claim 1, wherein said first heating device and said second heating device are both water heating devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122486059.4U CN216172301U (en) | 2021-10-15 | 2021-10-15 | Rapid bromination initiating device in propyl bromoketal/methyl bromoketal production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122486059.4U CN216172301U (en) | 2021-10-15 | 2021-10-15 | Rapid bromination initiating device in propyl bromoketal/methyl bromoketal production |
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| Publication Number | Publication Date |
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| CN216172301U true CN216172301U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122486059.4U Active CN216172301U (en) | 2021-10-15 | 2021-10-15 | Rapid bromination initiating device in propyl bromoketal/methyl bromoketal production |
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| CN (1) | CN216172301U (en) |
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- 2021-10-15 CN CN202122486059.4U patent/CN216172301U/en active Active
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