CN205575964U - Acetone recovery device - Google Patents
Acetone recovery device Download PDFInfo
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- CN205575964U CN205575964U CN201620353994.XU CN201620353994U CN205575964U CN 205575964 U CN205575964 U CN 205575964U CN 201620353994 U CN201620353994 U CN 201620353994U CN 205575964 U CN205575964 U CN 205575964U
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- molecular sieve
- acetone
- water absorber
- sieve water
- water absorption
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Abstract
The utility model discloses an acetone recovery device includes rectifying still, rectifying column, condenser, vapour and liquid separator, recovery acetone storage tank in proper order, still includes moisture adsorption component, moisture adsorption component include molecular sieve water absorption device, molecular sieve activation heating device, molecular sieve water absorption device with retrieve the acetone storage tank and be connected, molecular sieve activation heating device set up and heat on molecular sieve water absorption device and to molecular sieve water absorption device, molecular sieve water absorption device on be provided with the exhaust subassembly. The purpose that this acetone recovery device had realized detaching micro - water fast when acetone is retrieved in the big production of waterborne polyurethane promoted the efficiency that acetone was retrieved, and molecular sieve activation heating device can heat molecular sieve water absorption device to with molecular sieve activation once more, make the molecular sieve to use by long -term cycle, further reduced the cost recovery.
Description
Technical field
This utility model relates to a kind of retracting device, particularly relates to a kind of Acetone Retrieving Unit.
Background technology
The a large amount of acetone used in aqueous polyurethane production process, it is typically necessary after a procedure and acetone is reclaimed, to avoid environment, the acetone also simultaneously being able to obtain recovery is applied in the production of aqueous polyurethane again, thus improve the recycling rate of waterused of acetone, but the content to moisture has harsh requirement in aqueous polyurethane building-up process, remove acetone minor amount of water is all the technical barrier on big production all the time, and current Acetone Retrieving Unit reclaims the minor amount of water that the acetone obtained the most all contains more than ppm up to ten thousand even several ten thousand ppm, the reaction effect of aqueous polyurethane is affected apparent by minor amount of water.
Summary of the invention
This utility model cannot rapidly remove minor amount of water for the recovery acetone of the big production of existing aqueous polyurethane, acetone after rectification is directly applied mechanically into aqueous polyurethane, the reaction effect of aqueous polyurethane is affected the defect such as clearly, it is provided that a kind of new Acetone Retrieving Unit.
In order to solve above-mentioned technical problem, this utility model is achieved through the following technical solutions:
A kind of Acetone Retrieving Unit, include rectifying still, rectifying column, condenser, gas-liquid separator, recovery acetone storage tank successively, also include water adsorption assembly, described water adsorption assembly includes molecular sieve water absorber, molecular sieve activation heater, described molecular sieve water absorber is connected with reclaiming acetone storage tank, described molecular sieve activation heater is arranged on molecular sieve water absorber and heats molecular sieve water absorber, and described molecular sieve water absorber is provided with gas deflation assembly.
nullThe acetone used in aqueous polyurethane production process is through rectifying still、Rectifying column、Condenser、Gas-liquid separator、After reclaiming acetone storage tank，Can effectively remove remaining impurity，Acetone leaves the water of trace，Rapidly removing acetone minor amount of water in big production is the most all a technical barrier，And molecular sieve water absorber is a kind of dehydration device using molecular sieve，Molecular sieve is a kind of many microporous crystals of aluminosilicate，The strongest polarity and Coulombian field is had inside its crystal hole，Polar molecule and unsaturated molecule displays are gone out strong absorbability，Therefore when the acetone containing moisture is after molecular sieve water absorber，Moisture in acetone will be absorbed by molecular sieve water absorber and be rapidly decreased to below 500ppm，Achieve the purpose rapidly removing minor amount of water when aqueous polyurethane is big produces recovery acetone，Improve the efficiency that acetone reclaims，And molecular sieve water absorber low price，Can effectively reduce the cost recovery of acetone，Molecular sieve water absorber is after Long-Term Sorption moisture，Its adsorption effect will constantly reduce，And molecular sieve water absorber can be heated by molecular sieve activation heater，The moisture that molecular sieve water absorber is adsorbed is evaporated and is discharged at gas deflation assembly，Thus molecular sieve is activated again，Molecular sieve can be recycled for a long time，Not only increase organic efficiency，And reduce further cost recovery.
As preferably, a kind of Acetone Retrieving Unit described above, described molecular sieve activation heater includes heating inlet pipe, adding hot outlet tube, and described heating inlet pipe is arranged at the top of molecular sieve water absorber, and the described hot outlet tube that adds is arranged at the bottom of molecular sieve water absorber.
During heating, guiding is added thermal medium and enters from the top of molecular sieve water absorber by heating inlet pipe, make to add thermal medium be gradually filled with molecular sieve water absorber from top to bottom and evaporate the moisture of absorption in molecular sieve water absorber, finally heated medium flows out at hot outlet tube from adding of molecular sieve water absorber bottom, when its simple in construction and heating, cost is relatively low, wherein add thermal medium and can be selected for vapours or the conduction oil of middle pressure, to ensure temperature during heating.
As preferably, a kind of Acetone Retrieving Unit described above, described heating inlet pipe is additionally provided with air intake valve, described adding is additionally provided with valve of giving vent to anger on hot outlet tube.Can effectively control to add the turnover of thermal medium and when every day use it can be avoided that other impurity enters in molecular sieve water absorber, promote the service life of molecular sieve water absorber.
As preferably, a kind of Acetone Retrieving Unit described above, described water adsorption assembly also includes that filter, described filter are connected with molecular sieve water absorber.Filter can be filtered through in the acetone after molecular sieve water absorber with a small amount of molecular sieve cast so that finally reclaim the acetone obtained can meet well aqueous polyurethane produce requirement.
As preferably, a kind of Acetone Retrieving Unit described above, the quantity of described water adsorption assembly is 2 groups.2 groups of adsorbent equipment the using and the reserved recycle, it is ensured that the seriality of big production application, it is possible to promote the efficiency that acetone reclaims further.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Acetone Retrieving Unit of this utility model；
Fig. 2 is the structural representation of water adsorption assembly in this utility model.
Detailed description of the invention
This utility model is described in further detail by 1-2 and detailed description of the invention below in conjunction with the accompanying drawings, but they are not to restriction of the present utility model:
Embodiment
1
As shown in Figure 1 and Figure 2, a kind of Acetone Retrieving Unit, include rectifying still 1, rectifying column 2, condenser 3, gas-liquid separator 4 successively, reclaim acetone storage tank 5, also include water adsorption assembly 6, described water adsorption assembly 6 includes molecular sieve water absorber 7, molecular sieve activation heater 8, described molecular sieve water absorber 7 is connected with reclaiming acetone storage tank 5, described molecular sieve activation heater 8 is arranged on molecular sieve water absorber 7 and heats molecular sieve water absorber 7, and described molecular sieve water absorber 7 is provided with gas deflation assembly 14.
nullDuring use，By the acetone of use in aqueous polyurethane production process through rectifying still 1、Rectifying column 2、Condenser 3、Gas-liquid separator 4、Reclaim acetone storage tank 5，With remaining impurity removed in acetone and isolate major part water，Then acetone is passed through in molecular sieve water absorber 7 and absorbs water，Moisture in the acetone finally given is made to be less than 500ppm，To meet the requirement that aqueous polyurethane produces，Along with continuing on of molecular sieve water absorber 7，Its adsorption effect will constantly reduce，Now molecular sieve water absorber 7 is heated the moisture to adsorb in vapor molecule sieve water absorber 7 and is discharged at gas deflation assembly 14 by moisture by useful molecules sieve activation heater 8，Thus activated molecular sieve water absorber 7，Molecular sieve water absorber 7 can be repeatedly used for a long，Improve organic efficiency and cost recovery is relatively low.
As preferably, described molecular sieve activation heater 8 includes heating inlet pipe 10, adding hot outlet tube 12, and described heating inlet pipe 10 is arranged at the top of molecular sieve water absorber 7, and the described hot outlet tube 12 that adds is arranged at the bottom of molecular sieve water absorber 7.
When molecular sieve water absorber 7 is carried out heat-activated, thermal medium will be added from heating the shell being passed through molecular sieve water absorber 7 at inlet pipe 10, then add thermal medium will start from the top of molecular sieve water absorber 7 down to spread and be gradually filled with whole molecular sieve water absorber 7, finally heated medium is discharged from the hot outlet tube 12 that adds of molecular sieve water absorber 7 bottom, molecular sieve in tube layer and shell add the cold and hot exchange of thermal medium after, the temperature of molecular sieve raises, moisture in molecular sieve is evaporated and gas deflation assembly 14 from molecular sieve water absorber 7 top discharges moisture, thus complete the activation to molecular sieve water absorber 7.
As preferably, described heating inlet pipe 10 being additionally provided with air intake valve 11, described adding is additionally provided with valve 13 of giving vent to anger on hot outlet tube 12.
As preferably, described water adsorption assembly 6 also includes that filter 9, described filter 9 are connected with molecular sieve water absorber 7.
As preferably, the quantity of described water adsorption assembly 6 is 2 groups.
In a word, the foregoing is only preferred embodiment of the present utility model, equalization change and the modification that all scopes applied for a patent according to this utility model are made, all should belong to covering scope of the present utility model.
Claims (5)
1. an Acetone Retrieving Unit, include rectifying still (1) successively, rectifying column (2), condenser (3), gas-liquid separator (4), reclaim acetone storage tank (5), it is characterized in that: also include water adsorption assembly (6), described water adsorption assembly (6) includes molecular sieve water absorber (7), molecular sieve activation heater (8), described molecular sieve water absorber (7) is connected with reclaiming acetone storage tank (5), described molecular sieve activation heater (8) is arranged at molecular sieve water absorber (7) and above and heats molecular sieve water absorber (7), it is provided with gas deflation assembly (14) on described molecular sieve water absorber (7).
A kind of Acetone Retrieving Unit the most according to claim 1, it is characterized in that: described molecular sieve activation heater (8) includes heating inlet pipe (10), adding hot outlet tube (12), described heating inlet pipe (10) is arranged at the top of molecular sieve water absorber (7), and the described hot outlet tube (12) that adds is arranged at the bottom of molecular sieve water absorber (7).
A kind of Acetone Retrieving Unit the most according to claim 2, it is characterised in that: being additionally provided with air intake valve (11) on described heating inlet pipe (10), described adding is additionally provided with valve of giving vent to anger (13) on hot outlet tube (12).
A kind of Acetone Retrieving Unit the most according to claim 1, it is characterised in that: described water adsorption assembly (6) also includes that filter (9), described filter (9) are connected with molecular sieve water absorber (7).
A kind of Acetone Retrieving Unit the most according to claim 1, it is characterised in that: the quantity of described water adsorption assembly (6) is 2 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620353994.XU CN205575964U (en) | 2016-04-26 | 2016-04-26 | Acetone recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620353994.XU CN205575964U (en) | 2016-04-26 | 2016-04-26 | Acetone recovery device |
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| CN205575964U true CN205575964U (en) | 2016-09-14 |
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| CN201620353994.XU Active CN205575964U (en) | 2016-04-26 | 2016-04-26 | Acetone recovery device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277093A (en) * | 2018-11-07 | 2019-01-29 | 马鞍山马钢比欧西气体有限责任公司 | A kind of optimization and recovery system of regenerating molecular sieve air cooling condensate discharging modes |
| CN109608320A (en) * | 2019-01-09 | 2019-04-12 | 天津精分科技发展有限公司 | A kind of separation method of acetone and water mixed solvent |
| CN113455492A (en) * | 2021-07-31 | 2021-10-01 | 河南科技大学 | Biological plastify sample preparation equipment |
| CN114130347A (en) * | 2022-02-07 | 2022-03-04 | 烟台道成化学有限公司 | Constant viscosity dripping device for waterborne polyurethane resin |
-
2016
- 2016-04-26 CN CN201620353994.XU patent/CN205575964U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277093A (en) * | 2018-11-07 | 2019-01-29 | 马鞍山马钢比欧西气体有限责任公司 | A kind of optimization and recovery system of regenerating molecular sieve air cooling condensate discharging modes |
| CN109277093B (en) * | 2018-11-07 | 2023-10-27 | 马鞍山马钢林德气体有限责任公司 | Optimization and recovery system for molecular sieve regenerated gas condensate water discharge mode |
| CN109608320A (en) * | 2019-01-09 | 2019-04-12 | 天津精分科技发展有限公司 | A kind of separation method of acetone and water mixed solvent |
| CN113455492A (en) * | 2021-07-31 | 2021-10-01 | 河南科技大学 | Biological plastify sample preparation equipment |
| CN113455492B (en) * | 2021-07-31 | 2022-08-09 | 河南科技大学 | Biological plastify sample preparation equipment |
| CN114130347A (en) * | 2022-02-07 | 2022-03-04 | 烟台道成化学有限公司 | Constant viscosity dripping device for waterborne polyurethane resin |
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