CN204522354U - Solvent refining unit in a kind of synthetic rubber production process - Google Patents
Solvent refining unit in a kind of synthetic rubber production process Download PDFInfo
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- CN204522354U CN204522354U CN201520056030.4U CN201520056030U CN204522354U CN 204522354 U CN204522354 U CN 204522354U CN 201520056030 U CN201520056030 U CN 201520056030U CN 204522354 U CN204522354 U CN 204522354U
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Abstract
The utility model relates to solvent refining unit in a kind of synthetic rubber production process, it is characterized in that: form primarily of weight-removing column, weight-removing column reboiler, compressor, weight-removing column return tank, weight-removing column reflux pump and weight-removing column still pump, each equipment is connected by pipeline, feeding line is connected in the middle part of weight-removing column, weight-removing column top vapor delivery line is connected with compressor inlet, compressor outlet pipeline is connected with the import of weight-removing column reboiler shell side, weight-removing column reboiler shell-side outlet is connected with the import of weight-removing column return tank, the outlet of weight-removing column return tank is connected with the import of weight-removing column reflux pump, the outlet of weight-removing column reflux pump is connected with weight-removing column top and solvent cooler import respectively, solvent cooler outlet is connected with vent tank farm, weight-removing column reboiler is connected with weight-removing column respectively with weight-removing column driving reboiler tube side, weight-removing column still pump inlet pump is connected with weight-removing column still, outlet is connected with residual liquid tank.The utility model can save the heating energy consumption of about 37% and the cooling energy consumption of about 81% compared with two effect series connection rectification process.
Description
Technical field
The utility model relates to solvent refining unit in a kind of synthetic rubber production process, being specifically related to one and utilizing MVR(mechanical steam recompression formula heat pump) technique removes the device of the heavy component impurity in synthetic rubber production process in solvent, belongs to chemical technology field.
Background technology
In synthetic rubber production process, owing to adopting polymerisation in solution, polymerisation needs a large amount of solvents, solvent cohesion workshop section air lift out after refine to solvent refining workshop section, utilize Light ends and water in dehydrating tower desolvation, the heavy component then in weight-removing column desolvation.What in current production process, solvent refining adopted is that single tower or double tower two imitate rectification process flow process, and product per ton consumes steam generally at 2-3 ton, and observable index is higher.
MVR(mechanical steam recompression formula heat pump) operation principle is the steam of low-pressure low-temperature rectifying column tower top low-temp low-pressure gas phase or evaporimeter steamed by mechanically operated compressor, be compressed to elevated pressures and high-temperature, become the thermal source of high-temperature position, as rectifying column reboiler, heater and evaporimeter thermal source, to make full use of the latent heat of indirect steam or vapor condensation, with alternative external steam thermal source, except start up, without the need to steam in whole subtractive process, it is a high-efficiency energy-saving technology.Be generally used for the unit operations such as rectifying, evaporation.
Summary of the invention
The purpose of this utility model is to provide solvent refining unit in a kind of synthetic rubber production process, removes the heavy component impurity in synthetic rubber production process in solvent, can improve efficiency of utilization, reduces energy ezpenditure, reduces production cost.
The technical solution of the utility model is: solvent refining unit in a kind of synthetic rubber production process, and primarily of weight-removing column, weight-removing column reboiler, compressor, weight-removing column return tank, weight-removing column reflux pump and weight-removing column still pump composition, each equipment is connected by pipeline, feeding line is connected in the middle part of weight-removing column, weight-removing column top vapor delivery line is connected with compressor inlet, compressor outlet pipeline is connected with the import of weight-removing column reboiler shell side, weight-removing column reboiler shell-side outlet is connected with the import of weight-removing column return tank, the outlet of weight-removing column return tank is connected with the import of weight-removing column reflux pump, the outlet of weight-removing column reflux pump is connected with weight-removing column top and solvent cooler import respectively, solvent cooler outlet is connected with vent tank farm, weight-removing column reboiler is connected with weight-removing column respectively with weight-removing column driving reboiler tube side, the pump inlet of weight-removing column still is connected with weight-removing column still, outlet is connected with residual liquid tank.
This device is also equipped with various annex, as safety valve, Pressure gauge, thermometer, flow control valve etc.
The compressor of this device is Mechanical Driven compressor.
Introduce the application of the utility model in synthetic rubber production process in solvent refining below:
Adopt MVR(mechanical steam recompression formula heat pump) technique as shown in Figure 1, its technical process is as follows:
MVR(mechanical steam recompression formula heat pump) technique is: remove the solvent after Light ends and water through dehydrating tower, enter in the middle part of weight-removing column 1, weight-removing column 1 adopts pressure-fired rectifying, operating pressure is 0.12-0.14MPa.A, weight-removing column still temperature is 85-95 DEG C, adopt low-pressure steam as weight-removing column driving reboiler 8 thermal source when device is driven, in normal course of operation, weight-removing column 1 top gaseous phase enters weight-removing column tower reactor reboiler 2 shell side after compressor 3 pressurizes intensification, be condensed as its thermal source, condensate liquid enters weight-removing column return tank 4, then weight-removing column 1 is returned as reflux through weight-removing column reflux pump 5 small part, remainder is sent to product tank field through cooler cooling.Weight-removing column bottom product delivers to residual liquid tank through weight-removing column tower reactor pump 6.
Feature of the present utility model and effect
The utility model is by MVR technology for the synthesis of solvent refining in rubber production process, and the single tower distillation, two towers two that replace use now imitate rectifying desolvation heavy constituent technique.Present invention process can save the heating energy consumption of about 37% and the cooling energy consumption of about 81% compared with two effect series connection rectification process.
Device of the present utility model, except start up, does not consume steam in weight-removing column normal productive process, only consumes a small amount of electricity.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
In figure: 1-weight-removing column, 2-weight-removing column reboiler, 3-compressor, 4-weight-removing column return tank, 5-weight-removing column reflux pump, 6-weight-removing column tower reactor pump, 7-solvent cooler, 8-weight-removing column driving reboiler;
LS-low-pressure steam CW-recirculated water.
Detailed description of the invention
Further illustrate the present invention below in conjunction with accompanying drawing, but do not form limitation of the invention.
Embodiment 1:
Produce 20000 tons of SEBS devices per year, adopt MVR(mechanical steam recompression formula heat pump) technological process, as shown in Figure 1.
Cohesion process recovered solvent enters solvent refining operation and removes after Light ends and water through dehydrating tower, enter in the middle part of weight-removing column 1, weight-removing column 1 adopts pressure-fired rectifying, operating pressure is 0.12-0.14MPa.A, weight-removing column still temperature is 85-95 DEG C, adopt low-pressure steam as weight-removing column driving reboiler 8 thermal source when device is driven, in normal course of operation, weight-removing column 1 top gaseous phase enters weight-removing column tower reactor reboiler 2 shell side after compressor 3 pressurizes intensification, be condensed as its thermal source, condensate liquid enters weight-removing column return tank 4, then weight-removing column 1 is returned as reflux through weight-removing column reflux pump 5 small part, remainder is sent to product tank field through cooler 7 cooling.Weight-removing column bottom product delivers to residual liquid tank through weight-removing column tower reactor pump 6.
This MVR(mechanical steam recompression formula heat pump) technique is except start up, and do not consume steam in weight-removing column normal productive process, only consumption is a small amount of electric.
Solvent refining weight-removing column adopts two effect rectification process, and heating energy consumption is 3.645MW; Cooling energy consumption is 3.42 MW.
Solvent refining weight-removing column adopts MVR(mechanical steam recompression formula heat pump) technique, total power consumption is 0.7MW, and according to the level of the current thermal power generation of China, electric heating conversion coefficient gets 3.29, and total heating energy consumption that total power consumption 0.7MW converts is 2.303MW; Cooling energy consumption is 0.65 MW.
Solvent refining weight-removing column adopts MVR(mechanical steam recompression formula heat pump) technique imitates rectification flow technique relative to double tower two and reduces about 37% and heat energy consumption and about 81% and cool energy consumption.
Claims (2)
1. a solvent refining unit in synthetic rubber production process, is characterized in that: form primarily of weight-removing column (1), weight-removing column reboiler (2), compressor (3), weight-removing column return tank (4), weight-removing column reflux pump (5) and weight-removing column still pump (6), each equipment is connected by pipeline, feeding line is connected on weight-removing column (1) middle part, weight-removing column (1) top vapor delivery line is connected with compressor (3) import, compressor (3) outlet line is connected with weight-removing column reboiler (2) shell side import, weight-removing column reboiler (2) shell-side outlet is connected with weight-removing column return tank (4) import, weight-removing column return tank (4) outlet is connected with weight-removing column reflux pump (5) import, weight-removing column reflux pump (5) outlet is connected with weight-removing column (1) top and solvent cooler (7) import respectively, solvent cooler (7) outlet is connected with vent tank farm, weight-removing column reboiler (2) is connected with weight-removing column (1) respectively with weight-removing column driving reboiler (8) tube side, weight-removing column still pump (6) import pump is connected with weight-removing column (1) still, outlet is connected with residual liquid tank.
2. solvent refining unit in synthetic rubber production process according to claim 1, is characterized in that described compressor (3) is Mechanical Driven compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520056030.4U CN204522354U (en) | 2015-01-27 | 2015-01-27 | Solvent refining unit in a kind of synthetic rubber production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520056030.4U CN204522354U (en) | 2015-01-27 | 2015-01-27 | Solvent refining unit in a kind of synthetic rubber production process |
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| CN204522354U true CN204522354U (en) | 2015-08-05 |
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| CN201520056030.4U Active CN204522354U (en) | 2015-01-27 | 2015-01-27 | Solvent refining unit in a kind of synthetic rubber production process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964005A (en) * | 2016-04-22 | 2016-09-28 | 常州博睿杰能环境技术有限公司 | Split type MVR heat pump rectification heat integration system |
| RU2811786C2 (en) * | 2019-07-22 | 2024-01-17 | Зульцер Мэнэджмент Аг | Method for distillation of crude composition in rectification plant including indirect heat pump |
-
2015
- 2015-01-27 CN CN201520056030.4U patent/CN204522354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964005A (en) * | 2016-04-22 | 2016-09-28 | 常州博睿杰能环境技术有限公司 | Split type MVR heat pump rectification heat integration system |
| RU2811786C2 (en) * | 2019-07-22 | 2024-01-17 | Зульцер Мэнэджмент Аг | Method for distillation of crude composition in rectification plant including indirect heat pump |
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