CN204550448U - A kind of Pa-6 Polymerization extracting system - Google Patents
A kind of Pa-6 Polymerization extracting system Download PDFInfo
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- CN204550448U CN204550448U CN201520192703.9U CN201520192703U CN204550448U CN 204550448 U CN204550448 U CN 204550448U CN 201520192703 U CN201520192703 U CN 201520192703U CN 204550448 U CN204550448 U CN 204550448U
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- extraction tank
- recovery system
- extraction
- ball valve
- tank
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Abstract
The utility model provides a kind of Pa-6 Polymerization extracting system, comprise one first extraction tank, second extraction tank, one well heater and an impeller pump, described first extraction tank and the second extraction tank are respectively equipped with one first steam coils and one second steam coils, the inlet end of described first extraction tank is connected with recovery system, the exit end of described first extraction tank is connected with the input terminus of impeller pump by one first ball valve, and described centrifugal delivery side of pump is connected to polymerization plant, the inlet end of described second extraction tank is connected with recovery system, the exit end of described second extraction tank is connected with the input terminus of impeller pump by one second ball valve, described first extraction tank is provided with one first manhole, described second extraction tank is provided with one second manhole.The utility model achieves the cleaning extraction tank when not stopping, and improve final product quality, and the utility model structure is simple, is easy to realize.
Description
Technical field
The utility model relates to a kind of Pa-6 Polymerization extracting system.
Background technology
Existing Pa-6 Polymerization extracting system, comprises a 1000m
3extraction tank and an extraction water transferpump, after the extraction water from recovery system being extracted by extraction tank, by transferpump, the extraction water after extraction is sent to polymerization plant for production and application again, thus improves raw-material utilization ratio, reduce production cost.Containing impurity such as hexanolactam, water, oligopolymer and dust in extraction water in recovery system, some of them impurity can be deposited in extraction tank in extraction process, but because quantity-produced needs, can not be stopped separately cleaning extraction tank, so just have the foreign material such as a large amount of dust to be deposited on for a long time in extraction tank and can not to discharge in time, be mixed into a large amount of impurity during finished product is cut into slices, cause the decline of finished product chipping qualities.
Summary of the invention
The technical problems to be solved in the utility model, being to provide a kind of Pa-6 Polymerization extracting system, ensureing when not stopping, and regularly clears up extraction tank, thus improves the quality of finished product section.
The utility model is achieved in that a kind of Pa-6 Polymerization extracting system, comprise one first extraction tank, one well heater and an impeller pump, one first steam coils is provided with in described first extraction tank, the two ends of described first steam coils are connected with well heater with one second stopping valve respectively by one first stopping valve, the inlet end of described first extraction tank is connected with recovery system, the exit end of described first extraction tank is connected with the input terminus of impeller pump by one first ball valve, and described centrifugal delivery side of pump is connected to polymerization plant, described system also comprises one second extraction tank, one second steam coils is provided with in described second extraction tank, the two ends of described second steam coils are connected with well heater with one the 4th stopping valve respectively by one the 3rd stopping valve, the inlet end of described second extraction tank is connected with recovery system, the exit end of described second extraction tank is connected with the input terminus of impeller pump by one second ball valve, described first extraction tank is provided with one first manhole, described second extraction tank is provided with one second manhole.
Further, described recovery system comprises one first recovery system and one second recovery system, described first extraction tank is connected with the first recovery system by one the 3rd ball valve, be connected with the second recovery system by one the 4th ball valve, described second extraction tank is connected with the first recovery system by one the 5th ball valve, is connected with the second recovery system by one the 6th ball valve.
Further, described first extraction tank and the second volume extracting tank are respectively 1000m
3and 400m
3, described second extraction tank is mainly used in using when cleaning first extracts tank, and therefore the volume of the second extraction tank does not need too large.
The utility model has the advantage of: the utility model extracts tank by design two and arrange manhole respectively on two extraction tanks, realize being used alternatingly of two extraction tanks, ensure that cleanup crew enters manhole cleaning extraction tank when not stopping, improve the degree of cleaning of extraction tank, thus improve final product quality.
Accompanying drawing explanation
The utility model is further described with reference to the accompanying drawings in conjunction with the embodiments.
Fig. 1 is structural representation of the present utility model.
Embodiment
Refer to Fig. 1, a kind of Pa-6 Polymerization extracting system of the utility model, comprise one first extraction tank 1, one well heater 2 and an impeller pump 3, one first steam coils 11 is provided with in described first extraction tank 1, the two ends of described first steam coils 11 are connected with well heater 2 with one second stopping valve 112 respectively by one first stopping valve 111, the inlet end of described first extraction tank 1 is connected with recovery system 4, the exit end of described first extraction tank 1 is connected with the input terminus of impeller pump 3 by one first ball valve 12, and the output terminal of described impeller pump 3 is connected to polymerization plant 5, described system also comprises one second extraction tank 6, one second steam coils 61 is provided with in described second extraction tank 6, the two ends of described second steam coils 61 are connected with well heater 2 with one the 4th stopping valve 612 respectively by one the 3rd stopping valve 611, the inlet end of described second extraction tank 6 is connected with recovery system 4, the exit end of described second extraction tank 6 is connected with the input terminus of impeller pump 3 by one second ball valve 62, described recovery system 4 comprises one first recovery system 41 and one second recovery system 42, described first extraction tank 1 is connected with the first recovery system 41 by one the 3rd ball valve 13, be connected with the second recovery system 42 by one the 4th ball valve 14, described second extraction tank 6 is connected with the first recovery system 41 by one the 5th ball valve 63, be connected with the second recovery system 42 by one the 6th ball valve 64, described first extraction tank 1 is provided with one first manhole 15, described second extraction tank 6 is provided with one second manhole 65, .
Preferably, described first extraction tank 1 and the second volume extracting tank 6 are respectively 1000m
3and 400m
3two extraction tanks individually use, described second extraction tank 6 is mainly used in when cleaning first extracts tank, substitute the first extraction tank and provide caprolactam water solution for polymerization plant, because the time of cleaning the first extraction tank 1 is not long, therefore the volume of the second extraction tank 6 does not need too large.
Using state 1: enable the first extraction tank 1, close the second extraction tank 6: open the first ball valve 12, 3rd ball valve 13, 4th ball valve 14, first stopping valve 111 and the second stopping valve 112, and close the second ball valve 62, 5th ball valve 63, 3rd stopping valve 611 and the 4th stopping valve 612, extraction water is put into the first extraction tank 1 by the first recovery system 41 and the second recovery system 42, in extraction process, the first steam coils 11 pairs of extraction water heat, control the temperature of extraction water more than 78 DEG C, avoid occurring crystallization and affect conveying, caprolactam water solution after extraction is transported to polymerization plant by impeller pump 3, put into production, cleanup crew can enter the second manhole 65 and clear up the second extraction tank 6.
Using state 2: enable the second extraction tank 6, close the first extraction tank 1: open the second ball valve 62, 5th ball valve 63, 3rd stopping valve 611 and the 4th stopping valve 612, and close the first ball valve 12, 3rd ball valve 13, 4th ball valve 14, first stopping valve 111 and the second stopping valve 112, extraction water is put into the second extraction tank 6 by the first recovery system 41 and the second recovery system 42, in extraction process, the second steam coils 61 pairs of extraction water heat, control the temperature of extraction water more than 78 DEG C, avoid occurring crystallization and affect conveying, caprolactam water solution after extraction is transported to polymerization plant by impeller pump 3, put into production, cleanup crew can enter the first manhole 15 and clear up the first extraction tank 1.
The utility model extracts tank by design two and arrange manhole respectively on two extraction tank, when cleaning one extracts tank, available another one extraction tank continues to produce, and does not need parking can complete cleaning extraction tank, improve the degree of cleaning of extraction tank, thus improve final product quality.
Although the foregoing describe embodiment of the present utility model; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present utility model; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present utility model and change, should be encompassed in scope that claim of the present utility model protects.
Claims (3)
1. a Pa-6 Polymerization extracting system, comprise one first extraction tank, one well heater and an impeller pump, one first steam coils is provided with in described first extraction tank, the two ends of described first steam coils are connected with well heater with one second stopping valve respectively by one first stopping valve, the inlet end of described first extraction tank is connected with recovery system, the exit end of described first extraction tank is connected with the input terminus of impeller pump by one first ball valve, and described centrifugal delivery side of pump is connected to polymerization plant, it is characterized in that: described system also comprises one second extraction tank, one second steam coils is provided with in described second extraction tank, the two ends of described second steam coils are connected with well heater with one the 4th stopping valve respectively by one the 3rd stopping valve, the inlet end of described second extraction tank is connected with recovery system, the exit end of described second extraction tank is connected with the input terminus of impeller pump by one second ball valve, described first extraction tank is provided with one first manhole, described second extraction tank is provided with one second manhole.
2. a kind of Pa-6 Polymerization extracting system as claimed in claim 1, it is characterized in that: described recovery system comprises one first recovery system and one second recovery system, described first extraction tank is connected with the first recovery system by one the 3rd ball valve, be connected with the second recovery system by one the 4th ball valve, described second extraction tank is connected with the first recovery system by one the 5th ball valve, is connected with the second recovery system by one the 6th ball valve.
3. a kind of Pa-6 Polymerization extracting system as claimed in claim 1, is characterized in that: described first extraction tank and the second volume extracting tank are respectively 1000m
3and 400m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192703.9U CN204550448U (en) | 2015-04-01 | 2015-04-01 | A kind of Pa-6 Polymerization extracting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192703.9U CN204550448U (en) | 2015-04-01 | 2015-04-01 | A kind of Pa-6 Polymerization extracting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204550448U true CN204550448U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520192703.9U Expired - Fee Related CN204550448U (en) | 2015-04-01 | 2015-04-01 | A kind of Pa-6 Polymerization extracting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204550448U (en) |
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2015
- 2015-04-01 CN CN201520192703.9U patent/CN204550448U/en not_active Expired - Fee Related
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20200401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |