CN205627875U - Feeding device in polyether glycol aftertreatment - Google Patents
Feeding device in polyether glycol aftertreatment Download PDFInfo
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- CN205627875U CN205627875U CN201620348952.7U CN201620348952U CN205627875U CN 205627875 U CN205627875 U CN 205627875U CN 201620348952 U CN201620348952 U CN 201620348952U CN 205627875 U CN205627875 U CN 205627875U
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Abstract
The utility model provides a feeding device in polyether glycol aftertreatment for in need dividing batch reaction of adding the auxiliary agent, the structure includes reation kettle and expects the jar that material jar upper portion sets up feed hopper, sets up the pipeline of cartoon income nitrogen gas on the material jar. The nitrogen gas that lets in makes the air evacuation in the material jar, prevents that oxygen in the air from getting into easily to fire that explosive gas mixes and the explosion among reation kettle and the reation kettle. The utility model discloses simple structure can effectively avoid reducing and the easy problem that produces the explosion because of air suction causes product quality, is applicable to the industrial production.
Description
Technical field
This utility model relates to a kind of feeding device, in the reaction needing to add in batches auxiliary agent, belongs to
Mixing equipment and technology.
Background technology
The commercial production of polyether polyol is typically based on anion catalyzed ring opening polymerization.In certain temperature and
Under pressure, with potassium hydroxide etc. as catalyst, propylene oxide or open-loop polymerizing ethylene oxide, obtain thick polyethers
Polyhydric alcohol, more post-treated process, obtain polyether polyol finished product.The post processing of crude polyoxyalkylene polyol is general
By neutralizing, adsorb, be dehydrated, the operation such as filtration forms.Each operation will add different auxiliary agents, such as phosphorus
Acid, magnesium silicate, antioxidant etc..
Auxiliary agent adds the general mode using the direct suction of vacuum, is taken out by neutralization reactor pressure by vacuum pump
To certain vacuum, then with flexible pipe, the auxiliary agents such as phosphoric acid are sucked neutralization still, close vacuum pump afterwards.But
There is an important defect in this feed way, i.e. when vacuum suction auxiliary agent, can inevitably suck
Air.Suck air product quality and safety in production are had undesirable effect.On the one hand, air enters and neutralizes
In reactor, mix with the flammable explosive gas such as propylene oxide or ethylene oxide, there is the danger of blast；Separately
On the one hand, air enters and neutralizes in reactor, and meeting at high temperature polyether oxide polyhydric alcohol makes the molecule of product
Mass Distribution broadens, and produces a large amount of volatile low molecule organic matter simultaneously, is embodied in Contents In Polyether Polyol
Color burn, penetrating odor increase.Particularly with polyether polyol for soft PU foam, low abnormal smells from the patient, low unsaturation
Degree, these features of Narrow Molecular Weight Distribution are inexorable trend and the requirements of development in the future.It will be apparent that the suction of air
Enter, be unfavorable for producing the polyether polyol meeting the market demand, especially polyether polyol for soft PU foam.
Utility model content
This utility model is for the defect of prior art, it is provided that the charging in a kind of polyether polyol post processing
Device, its simple in construction, can be prevented effectively from and cause because air sucks product quality reduce and easily produce
The problem of blast.
Described in the utility model technical problem is that solves by the following technical programs:
Feeding device in a kind of polyether polyol post processing, including reactor and batch can, described reactor
And arranging ball valve between batch can, described batch can top arranges charging hopper, sets between batch can and charging hopper
Put charging valve, batch can arranges nitrogen valve and air bleeding valve.
Feeding device in above-mentioned polyether polyol post processing, described batch can arranges Pressure gauge.
Feeding device in above-mentioned polyether polyol post processing, the volume of described batch can is 0.5m3～2m3。
This utility model has the advantage that
This utility model arranges multiple valve between reactor, batch can, charging hopper and nitrogen pot, logical
Crossing the cooperation of valve opening and closing, the auxiliary agent making needs add temporarily stores in batch can, when needed,
Open ball valve, make auxiliary agent enter in reactor and react, batch can is provided with nitrogen valve, can be to batch can
In be passed through nitrogen, the nitrogen being passed through makes the air in batch can empty, and prevents oxygen in air from entering reaction
Still mixes with flammable explosive gas in reactor and explodes, and meanwhile, nitrogen produces a malleation in batch can
Power, when opening ball valve, high pressure makes the auxiliary agent in batch can fully enter reactor reaction.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
In figure, each label represents respectively: 1, reactor, 2, Pressure gauge, 3, charging hopper, 4, aerofluxus
Valve, 5, charging valve, 6, nitrogen valve, 7, batch can, 8, ball valve.
Detailed description of the invention
Refering to accompanying drawing 1, this utility model includes reactor 1 and batch can 7, described reactor 1 and material
Arranging ball valve 8 between tank 7, described batch can 7 top arranges charging hopper 3, batch can 7 and charging hopper
Charging valve 5 is set between 3, batch can 7 arranges nitrogen valve 6 and air bleeding valve 4.
Batch can volume of the present utility model is 0.5m3～2m3.The usage amount of various common auxiliary agents not bery
Greatly, few tens kilograms, many more than 1 ton, so batch can volume must is fulfilled for the throwing of multiple auxiliary agent
Material consumption.
And the volume of charging hopper is 0.005m3～0.010m3.Auxiliary agent is first poured into through charging hopper
Batch can, is then shut off the charging valve 5 bottom charging hopper, makes batch can become hermetic container.Charging hopper
The suitable height and position on top can install a platform, shelves auxiliary agent before convenient charging.
Batch can controls the nitrogen amount being passed through by nitrogen valve 6.Reactor can be neutralized being put into by auxiliary agent
Before 1, with high pure nitrogen thorough for the replacement of oxygen in auxiliary agent.
This utility model uses process as follows:
All valves are all in closed mode, it would be desirable to the auxiliary agent of interpolation adds charging hopper 3, beats
Driving charging valve 5, make auxiliary agent leak into batch can 7, then open nitrogen valve 6 and air bleeding valve 4, low discharge blows
Enter high pure nitrogen, keep 2 minutes, close air bleeding valve 4, continue to be blown into nitrogen in batch can 7.
Now Pressure gauge 2 shows malleation, closes nitrogen valve 6.Open ball valve 8, make helping of required addition
Agent under high pressure enters reactor 1, closes after keeping 5 minutes.
Claims (3)
1. the feeding device in polyether polyol post processing, including reactor (1) and batch can
(7), there is pipeline connection between reactor (1) and batch can (7), it is characterised in that described reactor
(1) arranging ball valve (8) in the pipeline and between batch can (7), described batch can (7) top arranges and adds
Funnel (3), arranges charging valve (5), batch can (7) between batch can (7) and charging hopper (3)
On nitrogen valve (6) and air bleeding valve (4) are set.
Feeding device in a kind of polyether polyol post processing the most according to claim 1, its feature
It is, described batch can (7) arranges Pressure gauge (2).
Feeding device in a kind of polyether polyol post processing the most according to claim 1, its feature
Being, the volume of described batch can (7) is 0.5m3～2m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348952.7U CN205627875U (en) | 2016-04-22 | 2016-04-22 | Feeding device in polyether glycol aftertreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348952.7U CN205627875U (en) | 2016-04-22 | 2016-04-22 | Feeding device in polyether glycol aftertreatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205627875U true CN205627875U (en) | 2016-10-12 |
Family
ID=57062069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620348952.7U Active CN205627875U (en) | 2016-04-22 | 2016-04-22 | Feeding device in polyether glycol aftertreatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205627875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669244A (en) * | 2020-12-24 | 2022-06-28 | 中昊晨光化工研究院有限公司 | Charging system |
| CN116393070A (en) * | 2023-04-11 | 2023-07-07 | 昆山欣谷微电子材料有限公司 | Copolymer for preparing developing solution by slowly releasing dissolved oxygen and use method thereof |
-
2016
- 2016-04-22 CN CN201620348952.7U patent/CN205627875U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669244A (en) * | 2020-12-24 | 2022-06-28 | 中昊晨光化工研究院有限公司 | Charging system |
| CN116393070A (en) * | 2023-04-11 | 2023-07-07 | 昆山欣谷微电子材料有限公司 | Copolymer for preparing developing solution by slowly releasing dissolved oxygen and use method thereof |
| CN116393070B (en) * | 2023-04-11 | 2024-01-23 | 昆山欣谷微电子材料有限公司 | Copolymer for preparing developing solution by slowly releasing dissolved oxygen and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai yadongshi New Technology Group Co.,Ltd. Assignor: HEBEI YADONG CHEMICAL GROUP Co.,Ltd. Contract record no.: X2021130000018 Denomination of utility model: Feeding device in polyether polyol post-treatment Granted publication date: 20161012 License type: Common License Record date: 20211009 |