CN207203493U - Dimethylformamide evaporative applications device - Google Patents
Dimethylformamide evaporative applications device Download PDFInfo
- Publication number
- CN207203493U CN207203493U CN201721115331.5U CN201721115331U CN207203493U CN 207203493 U CN207203493 U CN 207203493U CN 201721115331 U CN201721115331 U CN 201721115331U CN 207203493 U CN207203493 U CN 207203493U
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- Prior art keywords
- vapor seperator
- filter
- evaporative
- dimethylformamide
- evaporation heater
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Abstract
It the utility model is related to a kind of dimethylformamide evaporative applications device, it includes vapor seperator, evaporative recirculation pump, filter and evaporation heater, the bottoms material outlet of the vapor seperator is connected with evaporative recirculation pump input, vaporization cycle pump output terminal is connected with filter input and evaporation heater input respectively, and filter output end and evaporation heater output end in the middle part of vapor seperator respectively with being connected；Pass through the technical program, a part of material enters filter after evaporative recirculation pump pressurizes and removes the impurity such as catalyst, clear liquid returns to vapor seperator, circulation is repeated in material in vapor seperator, circulation fluid returns to filter and gradually removes the impurity such as wherein a small amount of catalyst not filtered, is laid the foundation for the long-term use of vapo(u)rization system；Another part material enters evaporation heater through evaporative recirculation pump, and vapor seperator is returned after steam heats, and each composition is completed the separation by liquid phase to gas phase under certain temperature control.
Description
Technical field
A kind of chemical production equipment is the utility model is related to, is filled more particularly to a kind of dimethylformamide evaporative applications
Put.
Background technology
N, N--- dimethylformamides (DMF) are a kind of excellent industrial solvents and organic synthesis material, are that polyurethane closes
Advanced solvent needed for finished leather and polyacrylonitrile fibre industry, it can also be used to synthetic pesticide insecticide, synthesis medicine etc..
In recent years, the dimethylformamide technological process of production is constantly optimised, but vapor seperator is still to restrict production dress
Put the core of stable operation, vapor seperator easily generates one layer in inwall during evaporation operation and crystallizes and make evaporation efficiency
Be greatly reduced, sometimes must cleaning during shutdown equipment it is recovered normal, bring great inconvenience to production, cause equipment
Production capacity decline, material loss, energy consumption increase, production cost rise.
The effect of vapo(u)rization system is to remove accessory substance and catalyst, after liquid phase material completely vaporizes in vapor seperator
Into lightness-removing column, the stability of vapo(u)rization system performance directly affects the output capacity and qualification rate of product, how to make dimethyl formyl
The optimization of amine vapo(u)rization system extends using being the most important thing, and the extension dimethylformamide device production cycle means to obtain market master
Dynamic power.
Utility model content
In consideration of it, the utility model main purpose is to provide a kind of dimethylformamide evaporative applications device, pass through this
Technical scheme, it can directly extend the production cycle of relevant apparatus, create more preferable economic benefit.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：A kind of dimethylformamide evaporation
Application apparatus, including vapor seperator and material delivery pipe, the vapor seperator are vertically arranged for tubular, the material conveying
Pipe is connected with vapor seperator middle part, in addition to evaporative recirculation pump, filter and evaporation heater, the bottom of the vapor seperator
Portion's material outlet is connected with evaporative recirculation pump input, and vaporization cycle pump output terminal heats with filter input and evaporation respectively
Device input is connected, and filter output end and evaporation heater output end in the middle part of vapor seperator respectively with being connected, the evaporation
The bottom material outlet of separator is connected with filter input.
Also include demister, demister top is provided with silk screen, above silk screen and is provided with silk screen separately below and removes
Foam device presses grid and wire mesh demister propping bar, and the gas phase entrance of demister is connected with the outlet of vapor seperator top gas phase, foam removal
Device gaseous phase outlet is connected with rectifying column.
Spraying mechanism is provided with the vapor seperator top.
The filter is that two filters are in parallel.
String pipe is additionally provided between two filters being in parallel, string pipe both ends are connected with the middle part of two filters respectively
Connect.
The evaporation heater is two, and two evaporation heaters are in parallel.
It is using the beneficial effect after above-mentioned technical proposal：A kind of dimethylformamide evaporative applications device, by this skill
Art scheme, a part of material enter filter after evaporative recirculation pump pressurizes and remove the impurity such as catalyst, and clear liquid returns to evaporation
Separator, circulation is repeated in material in vapor seperator, is circulated back to filter and removes wherein a small amount of catalyst not filtered
Deng impurity, laid the foundation for the long-term use of vapo(u)rization system；Another part material passes through evaporative recirculation pump, into evaporation heater
Vapor seperator is returned after steam heats, each composition is completed the separation by liquid phase to gas phase under certain temperature control.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of demister in the utility model.
In figure, 1 vapor seperator, 2 material delivery pipes, 3 evaporative recirculation pumps, 4 filters, 5 evaporation heaters, 6 demisters,
7 silk screens, 8 wire mesh demisters pressure grid, 9 wire mesh demister propping bars, 10 spraying mechanisms, 11 string pipes.
Embodiment
Specific embodiment in the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 2, the dimethylformamide evaporative applications device that the utility model is related to, including evaporation separation
Device 1 and material delivery pipe 2, the vapor seperator 1 are vertically arranged for tubular, the material delivery pipe 2 and vapor seperator 1
Middle part is connected, in addition to evaporative recirculation pump 3, filter 4 and evaporation heater 5, the bottoms material outlet of the vapor seperator 1
It is connected with the input of evaporative recirculation pump 3, the output end of evaporative recirculation pump 3 inputs with the input of filter 4 and evaporation heater 5 respectively
End is connected, and the output end of filter 4 and the output end of evaporation heater 5 are connected with the middle part of vapor seperator 1 respectively, the evaporation separation
The bottom material outlet of device 1 is connected with the input of filter 4.
As further embodiment, in addition to demister 6, the internal upper part of demister 6 is provided with silk screen 7, in silk screen 7
Above and it is following on be respectively arranged with wire mesh demister pressure grid 8 and wire mesh demister propping bar 9, the gas phase entrance of demister 6
It is connected with the outlet of the top gas phase of vapor seperator 1, the gaseous phase outlet of demister 6 is connected with rectifying column.
As further embodiment, spraying mechanism 10 is provided with the top of vapor seperator 1.
As further embodiment, the filter 4 is that two filters 4 are in parallel.
As further embodiment, string pipe 11, string pipe 11 both ends point are additionally provided between two filters 4 being in parallel
It is not connected with two middle parts of filter 4.
As further embodiment, the evaporation heater 5 is two, and two evaporation heaters 5 are in parallel.
This is practical at work, and vapor seperator 1 receives the material from synthesis tower reactor by material delivery pipe 2, steams
The outlet of hair separator 1 bottoms material is connected by evaporative recirculation pump 3 with the input port of evaporation heater 5, under vapor seperator 1
Portion's material outlet is connected with the input of filter 4, and the output end of evaporation heater 5 is connected with the middle part input of vapor seperator 1,
The gaseous phase outlet of vapor seperator 1 is connected with the gas phase entrance of demister 6, and the gaseous phase outlet of demister 6 is connected with rectifying column.
At work, two filters 4 and two evaporation heaters 5 take turns to operate the utility model, in it is standby when
Filter 4 and evaporation heater 5 can soak cleaning, remove impurity out in filtering and heat exchange, keep good mistake
Function and heat exchange function are filtered, is laid the foundation for vapo(u)rization system long-term use；Another part passes through evaporative recirculation pump 3, into steaming
Hair heater 5 makes the temperature control of vapor seperator 1 at 160 DEG C or so, each composition is completed by liquid phase to gas phase, the gas isolated
Body enters demister by the gas phase entrance of demister 6, passes upward through silk screen and removes entrainment, enters from the gaseous phase outlet of demister 6
Enter follow-up workshop section, vapor seperator 1 can with periodic operation spraying mechanism 10 with water to being sprayed inside vapor seperator 1, clearly
After the crystallization of inside, ensure its good evaporation separation function.
Filter and evaporation heater can be used alternatingly, it is not necessary to cleaning during shutdown, this for current comparative maturity two
For NMF technique, market competition can be carried out by extending the service life of vapo(u)rization system, produce dimethylformamide
Product maximizing the benefits.
It is described above, preferably possible embodiments only of the present utility model, it is not limited to of the present utility model
Scope.
Claims (6)
1. a kind of dimethylformamide evaporative applications device, including vapor seperator and material delivery pipe, the vapor seperator
For the vertical equipment of tubular, the material delivery pipe is the middle part pipeline of vapor seperator, it is characterised in that also including vaporization cycle
Pump, filter and evaporation heater, the bottoms material outlet of the vapor seperator are connected with evaporative recirculation pump input, evaporated
Circulation pump output terminal is connected with filter input and evaporation heater input respectively, filter output end and evaporation heater
Output end in the middle part of vapor seperator respectively with being connected, the bottom material outlet of the vapor seperator and the input phase of filter
Even.
2. dimethylformamide evaporative applications device according to claim 1, it is characterised in that also including demister, institute
State demister internal upper part and be provided with silk screen, wire mesh demister pressure grid are respectively arranged with above silk screen and on following and silk screen removes
Foam device propping bar, the gas phase entrance of demister are connected with the outlet of vapor seperator top gas phase, demister gaseous phase outlet and rectifying
Tower is connected.
3. dimethylformamide evaporative applications device according to claim 1, it is characterised in that on the vapor seperator
Spraying mechanism is provided with portion.
4. dimethylformamide evaporative applications device according to claim 1, it is characterised in that the filter is two
Filter is in parallel.
5. dimethylformamide evaporative applications device according to claim 4, it is characterised in that two filterings being in parallel
String pipe is additionally provided between machine, string pipe both ends are connected with the middle part of two filters respectively.
6. dimethylformamide evaporative applications device according to claim 1, it is characterised in that the evaporation heater is
Two, two evaporation heaters are in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721115331.5U CN207203493U (en) | 2017-09-01 | 2017-09-01 | Dimethylformamide evaporative applications device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721115331.5U CN207203493U (en) | 2017-09-01 | 2017-09-01 | Dimethylformamide evaporative applications device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207203493U true CN207203493U (en) | 2018-04-10 |
Family
ID=61826531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721115331.5U Active CN207203493U (en) | 2017-09-01 | 2017-09-01 | Dimethylformamide evaporative applications device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207203493U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450553A (en) * | 2020-03-27 | 2020-07-28 | 聊城鲁西甲胺化工有限公司 | Dimethyl formamide evaporation system and production process |
| CN113999669A (en) * | 2021-11-04 | 2022-02-01 | 南京贝迪新材料科技股份有限公司 | Manufacturing method of fluorescent quantum dot optical film and optical film |
-
2017
- 2017-09-01 CN CN201721115331.5U patent/CN207203493U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450553A (en) * | 2020-03-27 | 2020-07-28 | 聊城鲁西甲胺化工有限公司 | Dimethyl formamide evaporation system and production process |
| CN113999669A (en) * | 2021-11-04 | 2022-02-01 | 南京贝迪新材料科技股份有限公司 | Manufacturing method of fluorescent quantum dot optical film and optical film |
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