CN217549036U - Ethylene glycol dimethacrylate rectifying tower - Google Patents
Ethylene glycol dimethacrylate rectifying tower Download PDFInfo
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- CN217549036U CN217549036U CN202221697589.1U CN202221697589U CN217549036U CN 217549036 U CN217549036 U CN 217549036U CN 202221697589 U CN202221697589 U CN 202221697589U CN 217549036 U CN217549036 U CN 217549036U
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- tower
- sight glass
- rectifying column
- rectifying
- ethylene glycol
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Abstract
The utility model provides an ethylene glycol dimethacrylate rectifying column, relates to the chemical industry field, including reation kettle, rectifying column, evaporation line, backflow line, reation kettle passes through evaporation line, backflow line with the rectifying column and connects, is equipped with sight glass I at the bottom of the tower, installs a sight glass II at the rectifying column tower bottom, and sight glass II is just to evaporation line, and a sight glass III is added to the rectifying column tower middle part, with the tower bottom just to the gas phase pipe add a sight glass, adds a sight glass at the tower middle part, changes the filled tower of former usefulness into the plate column who uses the cross-flow column plate to increase 1 meter tower festival according to the separation requirement. The method has the advantages that the product yield is guaranteed, the occurrence of polymerization in the tower is reduced, and the polymerization phenomenon in the tower can be found and solved in time, so that production accidents are avoided.
Description
Technical Field
The utility model relates to the field of chemical industry, especially ethylene glycol dimethacrylate rectifying tower.
Background
In the process of synthesizing the ethylene glycol dimethacrylate, the generated material is heated and gasified, passes through the bottom of the tower from a gas phase pipe, is subjected to gas-liquid exchange in a packed tower, is condensed at the top of the tower and is extracted. In the process, as the main component methyl methacrylate of the generated gas-phase substance is easy to polymerize at a certain temperature, polymers are often generated in a gas-phase pipe at the bottom of the tower and the middle part of the tower and are gradually increased, if the polymers are not found in time, large-area polymerization is initiated, pipelines and the tower are blocked, the production is stopped by light people, and the explosion danger exists by heavy people. Meanwhile, due to polymerization, liquid in the tower cannot return to the kettle and is blocked in the tower, so that the on-site treatment is extremely difficult and dangerous.
In addition, the adopted packed tower is easy to form accumulation at the bottom of the overflow weir for the system with solid particles or easy accumulation, and the more the trays are gathered in the long-term use process, the more the trays can even block the whole trays. Because the used filler is high in cost, if polymerization occurs, part of the polymer adheres to the filler, the treatment is very difficult, and if the polymer is discarded, the production cost is increased.
Disclosure of Invention
The utility model aims at providing a ethylene glycol dimethacrylate rectifying tower for solve the problem that can not in time park, handle when appearing the polymer, and manufacturing cost is high.
The technical scheme of the utility model: the utility model provides a ethylene glycol dimethacrylate rectification, includes reation kettle (6), rectifying column (1), evaporation line (4), backflow pipeline (5), wherein, reation kettle (6) are connected through evaporation line (4), backflow pipeline (5) with rectifying column (1), are equipped with sight glass I (3) at the bottom of the tower, and sight glass II (7) of installation are just to evaporation line (4) on rectifying column (1) the bottom of the tower, and rectifying column (1) tower middle part adds a sight glass III (8) to sight glass II (7).
The rectifying tower (1) is a plate tower, and a flow-through tower plate (10) is arranged in the rectifying tower.
The rectifying tower (1) comprises 3 tower sections (9).
The utility model discloses a profitable effect: a new sight glass 7 is added at the position of the tower bottom, which is over against the evaporation pipeline, and a new sight glass 8 is added at the middle part of the tower, so that inspection and observation are carried out at any time in the production process, and the shutdown treatment can be carried out in time when the polymer blockage is found to be serious, so as to avoid production accidents. The original packed tower is changed into a plate tower using a flow-through tower plate, so that solid particles gathered at the bottom of the overflow weir can smoothly flow to the next layer of tower tray through the semicircular holes, the tower plate efficiency is improved, tower sections are added according to the separation requirement, the occurrence of polymerization can be found in time, and therefore the tower can be stopped and treated in time, the production cost is reduced, and the polymerization degree of the rectifying tower is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a conventional apparatus.
Fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, but the scope of the present invention is not limited to the following examples.
The utility model provides a ethylene glycol dimethacrylate rectification, includes reation kettle 6, rectifying column 1, evaporation line 4, backflow pipeline 5, reation kettle 6 is connected through evaporation line 4, backflow pipeline 5 with rectifying column 1, is equipped with sight glass I3 at the bottom of the tower, installs a sight glass II7 on the rectifying column 1 tower bottom, and sight glass II7 is just to evaporation line 4, and a sight glass III8 is added to the middle part of rectifying column 1 tower.
The rectifying tower 1 is a plate tower, and a flow-through tower plate 10 is arranged in the rectifying tower.
The rectifying column 1 comprises 3 column sections 9.
In actual production, a new sight glass 7 is added at the bottom outlet of the rectifying tower, the sight glass 7 is over against the evaporation pipeline 4, inspection and observation are convenient at any time in the production process, a new sight glass 8 is added in the middle of the rectifying tower, and the shutdown treatment can be carried out in time when the polymer blockage is found to be serious, so that production accidents are avoided. Meanwhile, the original packed tower of the rectifying tower is changed into a plate tower, a flow-through tower plate 10 is arranged in the plate tower, so that solid particles gathered at the bottom of the overflow weir can smoothly flow to the next layer of tower tray through the semicircular holes, the tower plate efficiency is improved, and the number of tower sections 9 is increased according to the separation requirement.
Claims (3)
1. The utility model provides an ethylene glycol dimethacrylate rectifying column, includes reation kettle (6), rectifying column (1), evaporation line (4), backflow line (5), its characterized in that: reaction kettle (6) are connected through evaporation pipeline (4), backflow pipeline (5) with rectifying column (1), and rectifying column (1) bottom of the tower openly is equipped with sight glass I (3), installs sight glass II (7) on rectifying column (1) bottom of the tower, and sight glass II (7) are just to evaporation pipeline (4), and rectifying column (1) middle part adds sight glass III (8).
2. The ethylene glycol dimethacrylate rectifying column according to claim 1, wherein: the rectifying tower (1) is a plate tower, and a flow-through tower plate (10) is arranged in the rectifying tower.
3. The ethylene glycol dimethacrylate rectifying column according to claim 2, wherein: the rectifying tower (1) comprises 3 tower sections (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221697589.1U CN217549036U (en) | 2022-07-04 | 2022-07-04 | Ethylene glycol dimethacrylate rectifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221697589.1U CN217549036U (en) | 2022-07-04 | 2022-07-04 | Ethylene glycol dimethacrylate rectifying tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217549036U true CN217549036U (en) | 2022-10-11 |
Family
ID=83502103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221697589.1U Active CN217549036U (en) | 2022-07-04 | 2022-07-04 | Ethylene glycol dimethacrylate rectifying tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217549036U (en) |
-
2022
- 2022-07-04 CN CN202221697589.1U patent/CN217549036U/en active Active
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