CN220736246U - Concentrating device for preparing dioxolane - Google Patents
Concentrating device for preparing dioxolane Download PDFInfo
- Publication number
- CN220736246U CN220736246U CN202322422452.6U CN202322422452U CN220736246U CN 220736246 U CN220736246 U CN 220736246U CN 202322422452 U CN202322422452 U CN 202322422452U CN 220736246 U CN220736246 U CN 220736246U
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- Prior art keywords
- wall
- steam
- pipeline
- dioxolane
- production according
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- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000004821 distillation Methods 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000007790 scraping Methods 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000010992 reflux Methods 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 7
- 238000005457 optimization Methods 0.000 description 6
- 229930040373 Paraformaldehyde Natural products 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 229920002866 paraformaldehyde Polymers 0.000 description 4
- 239000004945 silicone rubber Substances 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000011973 solid acid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a concentration device for preparing a dioxolane, which belongs to the technical field of dioxolane preparation and comprises a fixed bottom plate, a distillation tower body, a device frame, a condenser, an air outlet pipe, a steam pipeline, a clamping column, a clamping block, a scraping ring, a guide sliding column, a heating block and a flange plate.
Description
Technical Field
The utility model relates to a concentration device for preparing dioxolane, and belongs to the technical field of dioxolane preparation.
Background
Dioxolane refers to 1, 3-dioxypentacyclic generally, the production process of 1, 3-dioxypentacyclic takes paraformaldehyde and ethylene glycol as raw materials, react under the catalysis of acidic ion exchange resin or sulfuric acid to generate 1, 3-dioxypentacyclic, the traditional production process can be divided into three working sections, namely a working section of paraformaldehyde, and formaldehyde solution is subjected to the working procedures of vacuum evaporation concentration, polymerization, spray granulation, drying and the like to prepare paraformaldehyde; secondly, a production section of a crude product of the dioxygen pentacyclic component, wherein paraformaldehyde and ethylene glycol generate crude 1, 3-dioxygen pentacyclic component containing impurities such as water, ethylene glycol and the like under the catalysis of solid acid or sulfuric acid; and thirdly, refining the crude product of the dioxane, namely obtaining the dioxane product with the purity of 99.9 percent through the procedures of alkali liquor extraction, rectification, heavy and light component removal dehydration or salting-out rectification, molecular sieve dehydration and the like.
When the existing rectifying tower is used for concentrating and rectifying dioxolane, steam generated by the rectifying tower is required to be condensed and then flows back into the rectifying tower again, however, the existing rectifying tower steam is easy to liquefy at a horizontal pipe part of a pipeline in the process of being conveyed to a condenser, so that liquid is remained in the pipeline, and when the steam is discharged from a top outlet of the existing rectifying tower, adhesive liquid is remained at the inner wall of an air outlet, such as residual glycol, and the wall of the air outlet is corroded if the residual glycol is not cleaned for a long time.
Disclosure of Invention
The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a concentrating device for dioxolane production, which can prevent a liquid from remaining in a pipe by preventing a vapor from being liquefied during a process of transferring the vapor to a condenser, and which can scrape off an adhesive liquid adhering to a wall of an outlet pipe at a top of a rectifying tower.
The utility model realizes the purpose through the following technical scheme that the concentrating device for preparing the dioxolane comprises a fixed bottom plate and a distillation tower body, wherein the distillation tower body is positioned on the top outer wall of the fixed bottom plate, a device frame is arranged on the top outer wall of the fixed bottom plate, an air outlet pipe is arranged at the top of the distillation tower body, one end of the air outlet pipe is connected with a flange plate, a steam pipeline is arranged on the flange plate, a condenser is arranged on the outer wall of the top of the device frame, one end of the steam pipeline, which is far away from the flange plate, is connected with the condenser, clamping columns are respectively arranged on the side walls of the steam pipeline, heating blocks are arranged on the side walls of the steam pipeline, clamping blocks are respectively arranged on the two side walls of the heating blocks, clamping grooves are movably clamped with the clamping columns, and limit screws are arranged on the clamping columns.
Preferably, in order to reflux the vapor liquefied by the condenser into the distillation column body, a reflux pipe is installed on a side wall of the condenser, and the condenser is connected to the distillation column body through the reflux pipe.
Preferably, in order to prevent heat dissipation of the heating block, a heat insulation shell is mounted on the side wall of the heating block.
Preferably, in order to timely scrape the liquid attached to the inner wall of the air outlet pipe, guide sliding columns are respectively connected to the flange plates in a sliding clamping mode, T-shaped plates and scraping rings are respectively arranged at two ends of the guide sliding columns, a telescopic bottom plate is arranged on the side wall of the steam pipeline, an electric telescopic rod is arranged on the outer wall of the top of the telescopic bottom plate, and the output end of the electric telescopic rod is connected with the T-shaped plates.
Preferably, in order to be able to convey steam into the steam pipe, a steam hose is mounted on the scraper ring, and the scraper ring is connected with the flange plate through the steam hose.
Preferably, in order to improve the high temperature resistance of the steam hose, the steam hose is made of silicone rubber.
Preferably, in order to provide a heat source for the distillation column body, a reboiler pipeline is arranged on the outer wall of the bottom of the distillation column body.
Preferably, in order to add the stock solution to be rectified into the distillation tower body, a liquid inlet pipeline is arranged on the side wall of the distillation tower body.
The beneficial effects of the utility model are as follows: through with joint piece and joint post looks joint, then rotate spacing screw, make it carry out spacingly to the joint piece for the heating block can be fixed on steam conduit's lateral wall, at steam transportation's in-process, heat the pipeline through the inside heater strip of heating block, thereby be favorable to preventing steam conduit's horizontal pipe position's steam liquefaction, lead to gas to remain inside the pipeline, after the device operation one end time, drive T template through electric telescopic handle and descend, make the direction slip post can drive the scraper ring and descend and scrape the adhesive liquid that adheres to on the outlet duct lateral wall, be favorable to preventing the inner wall of liquid corrosion outlet duct.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic view of the structure of the return pipe according to the present utility model.
Fig. 3 is an enlarged schematic view of the structure of the present utility model at a.
Fig. 4 is an enlarged schematic view of the structure at B of the present utility model.
In the figure: 1. a fixed bottom plate; 2. a distillation column body; 3. a device rack; 4. a condenser; 5. an air outlet pipe; 6. a flange plate; 7. a steam pipe; 8. a clamping column; 9. a heating block; 10. a clamping block; 11. a clamping groove; 12. a guide sliding column; 13. a scraping ring; 14. a telescopic bottom plate; 15. a limit screw; 16. t-shaped plates; 17. a reboiler pipeline; 18. a steam hose; 19. a liquid inlet pipe; 20. a return line; 21. a thermal insulation shell; 22. an electric telescopic rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to FIGS. 1-4, a concentrating device for preparing dioxolane comprises a fixed bottom plate 1 and a distillation tower body 2, wherein the distillation tower body 2 is positioned on the top outer wall of the fixed bottom plate 1, a device frame 3 is arranged on the top outer wall of the fixed bottom plate 1, an air outlet pipe 5 is arranged at the top of the distillation tower body 2, one end of the air outlet pipe 5 is connected with a flange 6, a steam pipeline 7 is arranged on the flange 6, a condenser 4 is arranged on the top outer wall of the device frame 3, one end of the steam pipeline 7 far away from the flange 6 is connected with the condenser 4, clamping columns 8 are respectively arranged on the side walls of the steam pipeline 7, a heating block 9 is arranged on the side walls of the steam pipeline 7, heating wires are arranged inside the heating block 9, clamping blocks 10 are respectively arranged on the two side walls of the heating block 9, clamping grooves 11 are formed in the clamping blocks 10, and the clamping grooves 11 are movably clamped with the clamping columns 8, the clamping column 8 is provided with the limit screw 15, the end part of the limit screw 15 is a strip-shaped block matched with the clamping groove 11, the side wall of the condenser 4 is provided with the reflux pipeline 20, the condenser 4 is connected with the distillation column body 2 through the reflux pipeline 20, the clamping block 10 is firstly clamped with the clamping column 8, then the limit screw 15 is rotated, the limit screw 15 can limit the clamping block 10, thereby the heating block 9 can be fixed on the side wall of the steam pipeline 7, and further, in the steam conveying process, the transverse pipe section of the steam pipeline 7 can be heated through the heating wire inside the heating block 9, the steam liquefaction of the transverse pipe part of the steam pipeline 7 is prevented, the gas is remained inside the steam pipeline 7, the steam enters the condenser 4 through the steam pipeline 7, condensed by the condenser 4 and then enters the distillation column body 2 through the reflux pipe 20.
As a technical optimization scheme of the utility model, as shown in FIG. 2, the side wall of the heating block 9 is provided with the heat insulation shell 21, and the heat of the heating block 9 can be insulated through the heat insulation shell 21, so that heat dissipation of the heating block 9 is prevented.
As a technical optimization scheme of the utility model, as shown in fig. 4, the flange 6 is respectively and slidably clamped with the guide sliding column 12, the T-shaped plate 16 and the scraping ring 13 are respectively arranged at two ends of the guide sliding column 12, the telescopic bottom plate 14 is arranged on the side wall of the steam pipeline 7, the electric telescopic rod 22 is arranged on the top outer wall of the telescopic bottom plate 14, the output end of the electric telescopic rod 22 is connected with the T-shaped plate 16, after the device runs for a certain time, the electric telescopic rod 22 can drive the T-shaped plate 16 to descend, so that the guide sliding column 12 can drive the scraping ring 13 to descend, and the scraping ring 13 can scrape the residual liquid attached on the side wall of the air outlet pipe 5, such as glycol, which is beneficial to preventing the liquid from corroding the inner wall of the air outlet pipe 5.
As a technical optimization scheme of the utility model, as shown in fig. 4, a steam hose 18 is installed on the scraping ring 13, and the scraping ring 13 is connected with the flange 6 through the steam hose 18, and steam directly enters the steam pipeline 7 connected with the flange 6 through the steam hose 18, so that excessive steam is facilitated to overflow through the connection part of the guide sliding column 12 and the flange 6.
As a technical optimization scheme of the utility model, as shown in fig. 4, the steam hose 18 is made of silicone rubber, and the silicone rubber has good high temperature resistance, and the high temperature resistance of the steam hose 18 is improved by the silicone rubber.
As a technical optimization scheme of the utility model, as shown in fig. 1, a reboiler pipeline 17 is arranged on the outer wall of the bottom of the distillation tower body 2, and is connected with a reboiler through the reboiler pipeline 17, so that liquid at the bottom of the distillation tower body 2 enters the reboiler, and steam is formed by the reboiler and enters the distillation tower body 2, thereby providing a heat source for the distillation tower body 2.
As a technical optimization scheme of the utility model, as shown in fig. 1, a liquid inlet pipeline 19 is installed on the side wall of the distillation tower body 2, and through the liquid inlet pipeline 19, the stock solution to be rectified can be added into the distillation tower body 2.
When the device is used, the clamping block 10 is clamped with the clamping column 8, and then the limiting screw 15 is rotated to limit the clamping block 10, so that the heating block 9 can be fixed on the side wall of the steam pipeline 7, and the pipeline is heated by the heating wire in the heating block 9 in the steam conveying process, thereby being beneficial to preventing steam liquefaction of the transverse pipe part of the steam pipeline 7 and gas residue in the pipeline, and when the device runs for a certain time, the T-shaped plate 16 is driven to descend by the electric telescopic rod 22, so that the guiding sliding column 12 can drive the scraping ring 13 to descend to scrape adhesive liquid attached on the side wall of the air outlet pipe 5, and being beneficial to preventing the liquid from corroding the inner wall of the air outlet pipe 5.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. A concentrating device for dioxolane preparation, characterized in that: including PMKD (1) and distillation column body (2), distillation column body (2) are located on the top outer wall of PMKD (1), install device frame (3) on the top outer wall of PMKD (1), outlet duct (5) are installed at the top of distillation column body (2), the one end of outlet duct (5) is connected with ring flange (6), install steam pipe (7) on ring flange (6), install condenser (4) on the device frame (3) top outer wall, just steam pipe (7) keep away from one end of ring flange (6) with condenser (4) are connected, install joint post (8) on the lateral wall of steam pipe (7) respectively, be provided with heating block (9) on the lateral wall of steam pipe (7), install joint piece (10) on the both sides wall of heating block (9) respectively, set up joint groove (11) on joint piece (10), just joint groove (11) with joint post (8) are gone up in the joint, joint screw (15) are provided with.
2. The concentrating device for dioxolane production according to claim 1, characterized in that: and a reflux pipeline (20) is arranged on the side wall of the condenser (4), and the condenser (4) is connected with the distillation tower body (2) through the reflux pipeline (20).
3. The concentrating device for dioxolane production according to claim 1, characterized in that: and a heat insulation shell (21) is arranged on the side wall of the heating block (9).
4. The concentrating device for dioxolane production according to claim 1, characterized in that: the novel steam pipeline is characterized in that the flange plate (6) is respectively connected with a guide sliding column (12) in a sliding manner, a T-shaped plate (16) and a scraping ring (13) are respectively arranged at two ends of the guide sliding column (12), a telescopic bottom plate (14) is arranged on the side wall of the steam pipeline (7), an electric telescopic rod (22) is arranged on the outer wall of the top of the telescopic bottom plate (14), and the output end of the electric telescopic rod (22) is connected with the T-shaped plate (16).
5. The concentrating apparatus for dioxolane production according to claim 4, wherein: the scraping ring (13) is provided with a steam hose (18), and the scraping ring (13) is connected with the flange plate (6) through the steam hose (18).
6. The concentrating apparatus for dioxolane production according to claim 5, wherein: the steam hose (18) is made of silicon rubber.
7. The concentrating device for dioxolane production according to claim 1, characterized in that: and a reboiler pipeline (17) is arranged on the outer wall of the bottom of the distillation tower body (2).
8. The concentrating device for dioxolane production according to claim 1, characterized in that: and a liquid inlet pipeline (19) is arranged on the side wall of the distillation tower body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322422452.6U CN220736246U (en) | 2023-09-07 | 2023-09-07 | Concentrating device for preparing dioxolane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322422452.6U CN220736246U (en) | 2023-09-07 | 2023-09-07 | Concentrating device for preparing dioxolane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220736246U true CN220736246U (en) | 2024-04-09 |
Family
ID=90562678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322422452.6U Active CN220736246U (en) | 2023-09-07 | 2023-09-07 | Concentrating device for preparing dioxolane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220736246U (en) |
-
2023
- 2023-09-07 CN CN202322422452.6U patent/CN220736246U/en active Active
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