CN204932891U - A kind of device removing low-boiling-point substance in polyethers - Google Patents
A kind of device removing low-boiling-point substance in polyethers Download PDFInfo
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- CN204932891U CN204932891U CN201520708838.6U CN201520708838U CN204932891U CN 204932891 U CN204932891 U CN 204932891U CN 201520708838 U CN201520708838 U CN 201520708838U CN 204932891 U CN204932891 U CN 204932891U
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- point substance
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Abstract
The utility model discloses a kind of device removing low-boiling-point substance in polyethers, comprise stirred tank, packed tower, static mixer and circulating pump, be equipped with heating tube being used for depositing outside the stirred tank of polyethers, be provided with vacuum pumping port on the top of stirred tank; The upper end of stirred tank is connected with the lower end of packed tower, is provided with the first nitrogen inlet at packed tower place, and the upper end of packed tower is connected with the lower end of stirred tank with circulating pump by static mixer.The polyethers removing low-boiling-point substance is needed to add heat temperature raising after stirred tank, through circulating pump, material is circulated to stirred tank through static mixer, packed tower, by bottom static mixer and packed tower top pass into nitrogen, nitrogen fully mixes with polyethers, low-boiling-point substance in polyethers is distributed in nitrogen, eventually pass stirred tank top to vacuumize, while being extracted out by nitrogen, be stripped of low-boiling-point substance.It is high that this device removes low-boiling-point substance efficiency.
Description
Technical field
The utility model belongs to the preparation method of organic high molecular compound, specifically a kind of device removing low-boiling-point substance in polyethers.
Background technology
PPG is the important source material of polyurethane material, and polyurethane material has extensive use in the automotive industry.Because people more and more pay close attention to environment protection health, require that in automobile, smell is low, automobile polyurethane material prepared by common polyether has certain smell, be some aldehyde materials be after testing main, have influence on the health of occupant, therefore automobile manufacturing company requires to reduce formaldehyde and acetaldehyde in polyethers, and common polyether is difficult to reach requirement, and conventional vacuum extraction method effectively can not remove formaldehyde in polyethers and acetaldehyde.Especially the acetaldehyde in polyethers, is not only difficult to remove, and also can constantly generates in high temperature removal process, and the aldehyde therefore sometimes after vacuum extraction in polyethers rises on the contrary, needs low-boiling-point substance in polyethers to remove.
Summary of the invention
The purpose of this utility model is to provide a kind of device removing low-boiling-point substance in polyethers, adopts this device can remove the low-boiling-point substances such as water in PPG, formaldehyde and acetaldehyde, and the PPG obtained can meet the requirement that polyurethane material is produced better.It is high that this device removes low-boiling-point substance efficiency.
The purpose of this utility model is achieved through the following technical solutions:
Remove a device for low-boiling-point substance in polyethers, it is characterized in that: this device comprises stirred tank, packed tower, static mixer and circulating pump, be equipped with heating tube being used for depositing outside the stirred tank of polyethers, be provided with vacuum pumping port on the top of stirred tank; The upper end of stirred tank is connected with the lower end of packed tower, is provided with the first nitrogen inlet at packed tower place, and the upper end of packed tower is connected with the lower end of stirred tank with circulating pump by static mixer; Circulating pump is arranged between static mixer and stirred tank; The second nitrogen inlet is provided with bottom static mixer.
In the utility model, heating tube is coated on the bottom of stirred tank and covers 2/3 part of stirred tank axis, makes the material homogeneous heating in whole stirred tank.
The utility model adds heat temperature raising after stirred tank by needing the polyethers removing low-boiling-point substance, through circulating pump, material is circulated to stirred tank through static mixer, packed tower, by bottom static mixer and packed tower top pass into nitrogen, nitrogen fully mixes with polyethers, low-boiling-point substance in polyethers is distributed in nitrogen, eventually pass stirred tank top to vacuumize, while being extracted out by nitrogen, be stripped of low-boiling-point substance.It is high that this device removes low-boiling-point substance efficiency.
The utility model adopts this combination unit can remove low-boiling-point substance in PPG, removes low-boiling-point substance efficiency high.The PPG obtained can meet the requirement that polyurethane material is produced better, is applied to auto industry environment protecting good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below by specific embodiment, the utility model is further described, but each embodiment is not all to concrete restriction of the present utility model.
Remove a combination unit for low-boiling-point substance in polyethers, this combination unit comprises stirred tank 1, packed tower 2, static mixer 3 and circulating pump 4, is equipped with heating tube 5 being used for depositing outside the stirred tank of polyethers, is provided with vacuum pumping port 11 on the top of stirred tank; The upper end of stirred tank is connected with the lower end of packed tower, is provided with the first nitrogen inlet 21 at packed tower place, and the upper end of packed tower is connected with the lower end of stirred tank with circulating pump by static mixer.Heating tube is coated on the bottom of stirred tank and covers 2/3 part of stirred tank axis, makes the material homogeneous heating in whole stirred tank.
Circulating pump is arranged between static mixer and stirred tank; The second nitrogen inlet 22 is provided with bottom static mixer.
During use, heat temperature raising after stirred tank is added by needing the polyethers removing low-boiling-point substance, through circulating pump, material is circulated to stirred tank through static mixer, packed tower, by bottom static mixer and packed tower top pass into nitrogen, nitrogen fully mixes with polyethers, low-boiling-point substance in polyethers is distributed in nitrogen, eventually passes stirred tank top and vacuumizes, and is stripped of low-boiling-point substance while being extracted out by nitrogen.It is high that this device removes low-boiling-point substance efficiency.
Claims (2)
1. one kind removes the device of low-boiling-point substance in polyethers, it is characterized in that: this device comprises stirred tank (1), packed tower (2), static mixer (3) and circulating pump (4), be equipped with heating tube (5) in stirred tank (1) outside being used for depositing polyethers, be provided with vacuum pumping port (11) on the top of stirred tank (1); The upper end of stirred tank (1) is connected with the lower end of packed tower (2), is provided with the first nitrogen inlet (21) at packed tower (2) place, and the upper end of packed tower (2) is connected with the lower end of circulating pump (4) with stirred tank (1) by static mixer (3); Circulating pump (4) is arranged between static mixer (3) and stirred tank (1); The second nitrogen inlet (22) is provided with in static mixer (3) bottom.
2. the device removing low-boiling-point substance in polyethers according to claim 1, is characterized in that: heating tube (5) is coated on the bottom of stirred tank (1) and covers 2/3 axial part of stirred tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520708838.6U CN204932891U (en) | 2015-09-15 | 2015-09-15 | A kind of device removing low-boiling-point substance in polyethers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520708838.6U CN204932891U (en) | 2015-09-15 | 2015-09-15 | A kind of device removing low-boiling-point substance in polyethers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204932891U true CN204932891U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520708838.6U Active CN204932891U (en) | 2015-09-15 | 2015-09-15 | A kind of device removing low-boiling-point substance in polyethers |
Country Status (1)
| Country | Link |
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| CN (1) | CN204932891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080167A (en) * | 2015-08-31 | 2015-11-25 | 句容宁武新材料发展有限公司 | Combining device for removing low-boiling substance of polyether |
| CN109761776A (en) * | 2018-12-29 | 2019-05-17 | 中国船舶重工集团公司第七一八研究所 | A kind of method of purification of hexachloroacetone |
-
2015
- 2015-09-15 CN CN201520708838.6U patent/CN204932891U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080167A (en) * | 2015-08-31 | 2015-11-25 | 句容宁武新材料发展有限公司 | Combining device for removing low-boiling substance of polyether |
| CN109761776A (en) * | 2018-12-29 | 2019-05-17 | 中国船舶重工集团公司第七一八研究所 | A kind of method of purification of hexachloroacetone |
| CN109761776B (en) * | 2018-12-29 | 2022-01-21 | 中国船舶重工集团公司第七一八研究所 | Purification method of hexachloroacetone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 212405 Jurong City, Zhenjiang Province, the town side of the road Yang Zhuangduan Chen sentence Patentee after: Jurong Ningwu New Material Co., Ltd. Address before: 212400 Zhenjiang City, Jurong Province, Jiangsu Town Road sentence Yang Zhuangduan Patentee before: Jurong Ningwu New Material Development Co., Ltd. |
|
| CP03 | Change of name, title or address |