CN206837571U - A kind of rotational flow settlement device - Google Patents
A kind of rotational flow settlement device Download PDFInfo
- Publication number
- CN206837571U CN206837571U CN201720756388.7U CN201720756388U CN206837571U CN 206837571 U CN206837571 U CN 206837571U CN 201720756388 U CN201720756388 U CN 201720756388U CN 206837571 U CN206837571 U CN 206837571U
- Authority
- CN
- China
- Prior art keywords
- tank body
- hydrocyclone
- filler
- rotational flow
- discharge nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000945 filler Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 abstract description 48
- 238000000926 separation method Methods 0.000 abstract description 8
- 238000004821 distillation Methods 0.000 description 7
- 238000000605 extraction Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000012071 phase Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 3
- 235000011130 ammonium sulphate Nutrition 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- -1 anionic lactam Chemical class 0.000 description 1
- 238000000998 batch distillation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000007524 organic acids Chemical group 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A kind of rotational flow settlement device, including tank body, tank body upper end connects clear liquid discharge nozzle, tank body lower end connects turbid discharge nozzle, filler is provided with tank body, tank body is separated into epicoele and cavity of resorption by the filler, hydrocyclone is provided with lower intracavitary, hydrocyclone heavy out connects towards turbid discharge nozzle, hydrocyclone light phase export towards filler, hydrocyclone charging aperture with feed pipe.The present apparatus improves the separative efficiency of oligomer in caprolactam vinasse, simplifies overall separation process by setting hydrocyclone and filler simultaneously in tank body.
Description
Technical field
It the utility model is related to a kind of rotational flow settlement device.
Background technology
Caprolactam distillation process is the final step of caprolactam refining.Using high vacuum operation drop in distillation process
Low caprolactam boiling point, caprolactam can be avoided by high thermal polycondensation, while add in alkali and there may be in distilling feeding liquid
A small amount of organic acid form stable salt, to be separated in distillation with caprolactam, reduce the volatile base of product
Content.But hot-spot situation inevitably be present in steam-heated heater tubulation, and be advantageous to oneself again
The presence of the caustic soda and moisture of implementing anionic lactam polymerisation, so the polymerization of caprolactam can be caused, so as to form solid particle, in order that
The heavy constituents such as the caustic soda that the particle and early stage that these polymer are formed add can be excluded smoothly out of destilling tower, and destilling tower is to evaporation
Amount has carried out strict control, ensures 1.5 ~ 2.0m3/h of volume flow of vinasse, the raffinate solid concentration exists by analysis
Between 0.8 ~ 3.0%wt, the change of its concentration is relevant with the control of the evaporation capacity of destilling tower.
Because 98% or so is all caprolactam in vinasse, must reclaim, traditional way is that this is residual
Liquid is directly transmitted back to ammonium sulfate process with pump after being mixed with the condensed water of distillation process and the steam-to-vacuum pump of flash process and used,
Become extraction phase --- the crude oil of oneself extraction tower.This method is simply followed without any processing is passed through in ammonium sulphate crystallizer and carrying
The circle of ring one, partial polymer can discharge with ammonia sulfate crystal, and another part is then as crude oil enters oneself extraction tower.In short-term
Interior own extraction tower also has no problem, and production is also relatively more normal, but as polymer accumulates for a long time, own extraction tower operating mode meeting
There is larger fluctuation：First, extraction phase carries aqueous phase secretly；Second, raffinate aqueous phase amount is few, own Cui Ta circle positions can not ensure, Er Qiecui
Substantial amounts of particulate matter is frequently accompanied by remaining aqueous phase, causes rotating disk and fixed disk to block.The fluctuation of extraction tower operating mode is to final production
Product yield and quality all cause larger fluctuation.
It is also relatively more to the processing method of caprolactam vinasse in the same industry, respectively there is feature：
1）Batch distillation is carried out to vinasse：Multiple distillation stills are used, certain vinasse is put and enters, in height
Recovery is condensed after caprolactam is evaporated under vacuum again, then stops after impurity is more in kettle after a period of time and is cleared up, clearly
Other kettle processing vinasse is used during reason.This method causes labor strength big, and intermittent operation
It is stable to be unfavorable for production；
2）Vinasse is sold：Improve the evaporation capacity of destilling tower as far as possible in the case of operating mode is suitable, subtract
The flow of small vinasse, then plus it is sold to other producer after little water and is purified.This method yield is low, and distills residual
The smaller solution of liquid measure causes raffinate pipeline easily to block, and regular causes distillation operating mode poor；
3）Intercepted using filter：Vinasse send ammonium sulfate process after being mixed with water, use filter, active-carbon bed
Layer, filter cloth centrifuge etc., water-insoluble is filtered out.By using the sand core funnel G4 of different size：5-15μm、 G5：2-
5μm 、G6：<Weigh difference after the residual night filtration drying of 2 μm of counterweights, it is found that G4 weight is substantially smaller than G5 and G6, so water
The diameter overwhelming majority of insoluble composition granule is below 5 μm, so common mechanical filter there is no great effect, and it is high
The filter cloth centrifuge filter efficiency of precision is again too low；
4）Physics settles：Distillation weight raffinate is stored with storage tank, through standing after a while, makes granular water
Insoluble matter is deposited on tank bottom, and the liquid caprolactam of upper strata clarification is extracted to recycle, with what is deposited in storage tank
Particulate matter increases, and clarifying effect keeps apart storage tank after reducing, and is come into operation again after eliminating particle thing after cleaning displacement.
Each caprolactam producer has the processing method of oneself to caprolactam vinasse, though its significant degree how
Sample, at least all assert that the polymer in caprolactam vinasse is harmful.
The content of the invention
The purpose of this utility model in provide it is a kind of it is new be used for it is low in sedimentation separation caprolactam vinasse
The rotational flow settlement device of polymers.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of rotational flow settlement device, including tank
Body, tank body upper end connection clear liquid discharge nozzle, tank body lower end connection turbid discharge nozzle are provided with filler in tank body, and the filler will
Tank body is separated into epicoele and cavity of resorption, and hydrocyclone is provided with lower intracavitary, hydrocyclone heavy out towards turbid discharge nozzle,
Hydrocyclone light phase export connects towards filler, hydrocyclone charging aperture with feed pipe.
Chuck is externally provided with tank body, water inlet pipe, chuck lower end connection outlet pipe are connected in chuck upper end.
The filler is perforated plate corrugated filler and/or inclined tube filler.
Two visors are provided with tank body lower end, two visors are located in tank body both sides respectively.
The beneficial effects of the utility model are：The present apparatus is carried by setting hydrocyclone and filler simultaneously in tank body
The separative efficiency of oligomer, simplifies overall separation process in high caprolactam vinasse；On the other hand, outside tank body
Provided with chuck, tank body is heated using chuck, the viscosity increase of oligomer, makes solid-liquid after effectively avoiding temperature of charge from reducing
It is separated difficult；On the other hand, visor can conveniently observe the height and hydrocyclone lower nozzle of tank base turbid layer
Discharge situation.
Brief description of the drawings
The utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is schematic diagram in structure of the present utility model.
In figure：Tank body 1, hydrocyclone 2, filler 3, chuck 4, clear liquid discharge nozzle 11, turbid discharge nozzle 12, light phase export
21st, heavy out 22, feed pipe 23, water inlet pipe 41, outlet pipe 42.
Embodiment
As shown in figure 1, a kind of rotational flow settlement device, including tank body 1, the upper end of tank body 1 connection clear liquid discharge nozzle 11, tank body 1
Lower end connection turbid discharge nozzle 12, is provided with filler 3, tank body 1 is separated into epicoele and cavity of resorption by the filler 3, under in tank body 1
Intracavitary is provided with hydrocyclone 2, and the heavy out 22 of hydrocyclone 2 is towards turbid discharge nozzle 12, the light phase export of hydrocyclone 2
21 connect towards filler 3, the charging aperture of hydrocyclone 2 with feed pipe 23.
The course of work of the present utility model is：Caprolactam vinasse enters in hydrocyclone 2 from feed pipe 23
Row centrifuges, and obtains the caprolactam clear liquid containing micro oligomer particles and the caprolactam rich in oligomer particles is turbid
Liquid, the caprolactam clear liquid containing micro oligomer particles are drawn from the top of hydrocyclone 2 and settled by filler 3,
From the caprolactam of recovery removing oligomer after the 11 mouthfuls of submittings of clear liquid discharge nozzle；Caprolactam turbid rich in oligomer particles from
Draw and together with the liquid containing oligomer Jing Guo the sedimentation separation of filler 3 from 12 mouthfuls of rows of turbid discharge nozzle the bottom of hydrocyclone 2
Go out.
When being separated using the present apparatus to caprolactam vinasse, realized in the hydrocyclone 2 in oneself
The first-stage centrifugal separation of acid amides vinasse, the product after one-level separates is again by carrying out two level sedimentation in the filler 3
Separation, so that the oligomer separation in caprolactam vinasse is more thoroughly, improve separative efficiency.
Chuck 4 is externally provided with tank body 1, water inlet pipe 41, the lower end of chuck 4 connection outlet pipe 42 are connected in the upper end of chuck 4.Use
When caloic fluid or steam can be first passed into chuck 4 by water inlet pipe 41, be discharged again from outlet pipe 42, make in tank body 1
Temperature of charge control between 110 degrees Celsius to 120 degrees Celsius, avoid temperature of charge reduce after material viscosity increase, make
Solid-Liquid Separation is difficult.
The filler 3 is perforated plate corrugated filler and/or inclined tube filler.When using inclined tube filler, the aperture 40 of inclined tube ~
50mm, to ensure that the oligomer to settle down is smoothly discharged downwards, without being attached on filler 3.
Two visors 5 are provided with the lower end of tank body 1, two visors 5 are located in the both sides of tank body 1 respectively.The convenient observation tank of visor 5
Height and the lower nozzle of hydrocyclone 2 the discharge situation of the bottom turbid layer of body 1.
Claims (4)
1. a kind of rotational flow settlement device, it is characterised in that including tank body（1）, tank body（1）Upper end connects clear liquid discharge nozzle（11）,
Tank body（1）Lower end connects turbid discharge nozzle（12）, in tank body（1）It is interior to be provided with filler（3）, the filler（3）By tank body（1）Separate
Into epicoele and cavity of resorption, hydrocyclone is provided with lower intracavitary（2）, hydrocyclone（2）Heavy out（22）Discharged towards turbid
Pipe（12）, hydrocyclone（2）Light phase export（21）Towards filler（3）, hydrocyclone（2）Charging aperture and feed pipe（23）Even
It is logical.
2. a kind of rotational flow settlement device according to claim 1, it is characterised in that in tank body（1）It is externally provided with chuck（4）,
In chuck（4）Upper end connects water inlet pipe（41）, chuck（4）Lower end connects outlet pipe（42）.
A kind of 3. rotational flow settlement device according to claim 1, it is characterised in that the filler（3）Filled out to be perforated plate corrugated
Material and/or inclined tube filler.
4. a kind of rotational flow settlement device according to claim 1, it is characterised in that in tank body（1）Lower end regards provided with two
Mirror（5）, two visors（5）It is located at respectively in tank body（1）Both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720756388.7U CN206837571U (en) | 2017-06-27 | 2017-06-27 | A kind of rotational flow settlement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720756388.7U CN206837571U (en) | 2017-06-27 | 2017-06-27 | A kind of rotational flow settlement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206837571U true CN206837571U (en) | 2018-01-05 |
Family
ID=60802737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720756388.7U Expired - Fee Related CN206837571U (en) | 2017-06-27 | 2017-06-27 | A kind of rotational flow settlement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206837571U (en) |
-
2017
- 2017-06-27 CN CN201720756388.7U patent/CN206837571U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 |